• sensory neuron
  • neuron that senses external stimuli and transduce them to signals internal to the organism.
  • oxygen sensory neuron
  • Neuron that senses and responds to oxygen.
  • obsolete head sensory neurons
  • obsolete tail sensory neurons
  • carbon dioxide sensory neuron
  • neuron that senses changes of CO2 concentration in the environment.
  • obsolete neuronal (amphid sensory neurons)
  • HO neuron
  • Hook sensory neurons.
  • PCAR
  • Sensory neuron of postcloacal sensilla in male
  • ADEL
  • Anterior deirid, sensory neuron, dopaminergic
  • PCAL
  • Sensory neuron of postcloacal sensilla in male
  • PCCL
  • Sensory neuron of postcloacal sensilla in male
  • PCCR
  • Sensory neuron of postcloacal sensilla in male
  • ADER
  • Anterior deirid, sensory neuron, dopaminergic
  • sensillum
  • sensory organ, consists of sensory neurons and supporting cells.
  • ALM
  • Neuron class of two anterior sensory neurons that transduce touch stimuli.
  • PLM
  • Neuron class of two posterior sensory neurons that transduce touch stimuli.
  • PCA
  • Neuron class of two male-specific sensory neuron of postcloacal sensilla.
  • spicule neuron
  • Sensory neuron of copulatory spicule in male, cilliated, open to outside at tip of spicule.
  • SPDL
  • Sensory neuron of copulatory spicle in male, cilliated, open to outside at tip of spicule
  • SPDR
  • Sensory neuron of copulatory spicle in male, cilliated, open to outside at tip of spicule
  • SPVL
  • Sensory neuron of copulatory spicle in male, cilliated, open to outside at tip of spicule
  • AQR
  • Neuron class of one sensory neuron, basal body; not part of a sensillum, projects into ring.
  • ADE
  • Neuron class of two sensory neurons of anterior deirids, sensory receptors in lateral alae, contain dopamine.
  • AVM
  • Neuron class of one sensory neuron, anterior ventral microtubule cell, touch receptor.
  • PQR
  • Neuron class of one sensory neuron, basal body, not part of a sensillum, projects into preanal gangion.
  • SPVR
  • Sensory neuron of copulatory spicle in male, cilliated, open to outside at tip of spicule, of pedigree B_beta.rda.
  • HOB
  • Neuron class of one male-specific sensory neuron associated with hook sensillum, receptor anterior to cloaca in male.
  • HOA
  • Neuron class of one male-specific sensory neuron associated with hook sensillum, receptor anterior to cloaca in male.
  • SPD
  • Neuron class of two male-specific sensory neuron associated with copulatory spicules, cilliated, open to outside at tip of spicule.
  • accessory cell
  • cells that support sensory neurons, similar to glial cells in vertebrates. A category which collectively refers to socket cells, sheath cells, and structural cells, or their processes. All of these cells extend long processes which serve a supporting role, rather like glia, to form a protective environment around sensory neuron endings. In addition, some of these cells extend broad thin processes from their somata which wrap around neuronal ganglia, again in a glia-like fashion
  • R1A
  • Neuron class of two male-specific sensory ray neurons type A of ray one.
  • R1B
  • Neuron class of two male-specific sensory ray neurons type B of ray one.
  • R2A
  • Neuron class of two male-specific sensory ray neurons type A of ray two.
  • R4B
  • Neuron class of two male-specific sensory ray neurons type B of ray four.
  • R7B
  • Neuron class of two male-specific sensory ray neurons type B of ray seven.
  • R5B
  • Neuron class of two male-specific sensory ray neurons type B of ray five.
  • R9B
  • Neuron class of two male-specific sensory ray neurons type B of ray nine.
  • R3A
  • Neuron class of two male-specific sensory ray neurons type A of ray three.
  • R3B
  • Neuron class of two male-specific sensory ray neurons type B of ray three.
  • R6A
  • Neuron class of two male-specific sensory ray neurons type A of ray six.
  • R6B
  • Neuron class of two male-specific sensory ray neurons type B of ray six.
  • R8A
  • Neuron class of two male-specific sensory ray neurons type A of ray eight.
  • R2B
  • Neuron class of two male-specific sensory ray neurons type B of ray two.
  • R4A
  • Neuron class of two male-specific sensory ray neurons type A of ray four.
  • R8B
  • Neuron class of two male-specific sensory ray neurons type B of ray eight.
  • AWAL
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • AWBL
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • AWCL
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • AWAR
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • AWBR
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • AWCR
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • R9A
  • Neuron class of two male-specific neurons that are associated with ninth male sensory ray, A neuron type.
  • R5A
  • Neuron class of two male-specific neurons that are associated with fifth male sensory ray, A neuron type.
  • R7A
  • Neuron class of two male-specific neurons that are associated with seventh male sensory ray, A neuron type.
  • ASGR
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASIL
  • one member of amphid neurons, single ciliated ending, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASIR
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASEL
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASJL
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASJR
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASGL
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASHL
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASKR
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASHR
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASKL
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • ASER
  • one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
  • neuronal sheath cell
  • a structural (glial) cell which forms an specialized environment surrounding the sensory ending(s) of one or more neurons; sometimes accompanied by a more distal socket cell. In early development of the sensory nerves and of the nerve ring some sheath cells (cephalics and labials) may also provide a substrate for axon guidance
  • m3L
  • Pharyngeal sensory-motorneurons
  • m3R
  • Pharyngeal sensory-motorneurons
  • I2L
  • Pharyngeal interneurons, ant sensory.
  • I2R
  • Pharyngeal interneurons, ant sensory.
  • hook sensillum
  • sensory organ of male hook.
  • R9stR
  • Male sensory rays, structural cell
  • R7stR
  • Male sensory rays, structural cell
  • ray 1
  • male sensory organ, most anterior.
  • ray 9
  • male sensory organ, most posterior.
  • R8stR
  • Male sensory rays, structural cell
  • R8AR
  • Male sensory rays, neuron, striated rootlet
  • inner labial sensillum
  • sensory organ of the inner labial.
  • R9AL
  • Male sensory rays, neuron, striated rootlet
  • R9AR
  • Male sensory rays, neuron, striated rootlet
  • ray 9 left
  • male sensory organ, most posterior, left.
  • ray 9 right
  • male sensory organ, most posterior, right.
  • R7AR
  • Male sensory rays, neuron, striated rootlet
  • ray 4
  • male sensory organ, fourth from most anterior.
  • ray 6
  • male sensory organ, sixth from most anterior.
  • ray 7
  • male sensory organ, seventh from most anterior.
  • ray 2
  • male sensory organ, second from most anterior.
  • ray 3
  • male sensory organ, third from most anterior.
  • ray 5
  • male sensory organ, fifth from most anterior.
  • ray 8
  • male sensory organ, eighth from most anterior.
  • ray neuron type A
  • type A neuron in male sensory ray.
  • ray 1 left
  • male sensory organ, most anterior, left side
  • I1L
  • Pharyngeal interneurons: ant sensory, input from RIP
  • ray 1 right
  • male sensory organ, most anterior, right side
  • I1R
  • Pharyngeal interneurons: ant sensory, input from RIP
  • ray neuron type B
  • type B neuron in male sensory ray.
  • I6 neuron
  • Neuron class of one pharyngeal interneuron, posterior sensory.
  • ray 4 left
  • male sensory organ, fourth from most anterior, left.
  • ray 4 right
  • male sensory organ, fourth from most anterior, right.
  • ray 7 right
  • male sensory organ, seventh from most anterior, right.
  • I5 neuron
  • Neuron class of one pharyngeal interneuron, posterior sensory.
  • ray 6 right
  • male sensory organ, sixth from most anterior, right.
  • ray 6 left
  • male sensory organ, sixth from most anterior, left.
  • I3 neuron
  • Neuron class of one pharyngeal interneuron, anterior sensory.
  • ray 5 left
  • male sensory organ, fifth from most anterior, left.
  • ray 5 right
  • male sensory organ, fifth from most anterior, right.
  • ray 7 left
  • male sensory organ, seventh from most anterior, left.
  • ray 8 left
  • male sensory organ, eighth from most anterior, left.
  • ray 8 right
  • male sensory organ, eighth from most anterior, right.
  • R5
  • Precursor of cells that form male sensory ray 5.
  • R6
  • Precursor of cells that form male sensory ray 6.
  • R8
  • Precursor of cells that form male sensory ray 8.
  • ray 2 left
  • male sensory organ, second from most anterior, left side.
  • ray 3 left
  • male sensory organ, third from most anterior, left side.
  • PHC
  • Neuron class of two neurons with cell bodies situated in the lumbar ganglia. Posteriorly directed processes run from the cell bodies into the tails pike running alongside the processes of PLM and PLN. The disposition of these processes suggests that they may be sensory dendrites.
  • R9
  • Precursor of cells that form male sensory ray 9.
  • ray 3 right
  • male sensory organ, third from most anterior, right side.
  • SPCR
  • Male specific sensory /motor neuron, innervates spicule protractor muscle
  • R2
  • Precursor of cells that form male sensory ray 2.
  • R3
  • Precursor of cells that form male sensory ray 3.
  • R4
  • Precursor of cells that form male sensory ray 4.
  • SPCL
  • Male specific sensory /motor neuron, innervates spicule protractor muscle
  • R1
  • Precursor of cells that form male sensory ray 1.
  • R7
  • Precursor of cells that form male sensory ray 7.
  • ray 2 right
  • male sensory organ, second from most anterior, right side.
  • ray precursor cell
  • Precursor cell of the male sensory ray (R1-R9).
  • R8BR
  • Male sensory rays, neuron, darkly staining tip, open to outside
  • PHCL
  • Neuron, striated rootlet in male, possibly sensory in tail spike
  • PHCR
  • Neuron, striated rootlet in male, possibly sensory in tail spike
  • R9_hyp
  • Male sensory ray 9 hypodermal cell, fuses with hypodermal syncytium
  • R9BR
  • Male sensory rays, neuron, darkly staining tip, open to outside
  • R8_hyp
  • Male sensory ray 8 hypodermal cell, fuses with hypodermal syncytium
  • R6_hyp
  • Male sensory ray 6 hypodermal cell, fuses with hypodermal syncytium
  • R7_hyp
  • Male sensory ray 7 hypodermal cell, fuses with hypodermal syncytium
  • R7BR
  • Male sensory rays, neuron, darkly staining tip, open to outside
  • R8stL
  • Post-embryonic cell of pedigree TL.appaaapp, male sensory rays, structural cell.
  • R1stL
  • Post-embryonic cell of pedigree V5L.pppppapp, male sensory rays, structural cell.
  • R3stL
  • Post-embryonic cell of pedigree V6L.papppapp, male sensory rays, structural cell.
  • R3stR
  • Post-embryonic cell of pedigree V6R.papppapp, male sensory rays, structural cell.
  • R7stL
  • Post-embryonic cell of pedigree TL.apappapp, male sensory rays, structural cell.
  • R2stR
  • Post-embryonic cell of pedigree V6R.papapapp, male sensory rays, structural cell.
  • R4stL
  • Post-embryonic cell of pedigree V6L.pppapapp, male sensory rays, structural cell.
  • R4stR
  • Post-embryonic cell of pedigree V6R.pppapapp, male sensory rays, structural cell.
  • R5stR
  • Post-embryonic cell of pedigree V6R.ppppaapp, male sensory rays, structural cell.
  • R1stR
  • Post-embryonic cell of pedigree V5R.pppppapp, male sensory rays, structural cell.
  • R6stL
  • Post-embryonic cell of pedigree V6L.pppppapp, male sensory rays, structural cell.
  • R6stR
  • Post-embryonic cell of pedigree V6R.pppppapp, male sensory rays, structural cell.
  • R9stL
  • Post-embryonic cell of pedigree TL.appapapp, male sensory rays, structural cell.
  • R2stL
  • Post-embryonic cell of pedigree V6L.papapapp, male sensory rays, structural cell.
  • R5stL
  • Post-embryonic cell of pedigree V6L.ppppaapp, male sensory rays, structural cell.
  • R2AL
  • Post-embryonic cell of pedigree V6L.papapaaa, male sensory rays, neuron, striated rootlet.
  • R5AR
  • Post-embryonic cell of pedigree V6R.ppppaaaa, male sensory rays, neuron, striated rootlet.
  • R6AL
  • Post-embryonic cell of pedigree V6L.pppppaaa, male sensory rays, neuron, striated rootlet.
  • R6AR
  • Post-embryonic cell of pedigree V6R.pppppaaa, male sensory rays, neuron, striated rootlet.
  • R1AL
  • Post-embryonic cell of pedigree V5L.pppppaaa, male sensory rays, neuron, striated rootlet.
  • R2AR
  • Post-embryonic cell of pedigree V6R.papapaaa, male sensory rays, neuron, striated rootlet.
  • R4AR
  • Post-embryonic cell of pedigree V6R.pppapaaa, male sensory rays, neuron, striated rootlet.
  • R4AL
  • Post-embryonic cell of pedigree V6L.pppapaaa, male sensory rays, neuron, striated rootlet.
  • R5AL
  • Post-embryonic cell of pedigree V6L.ppppaaaa, male sensory rays, neuron, striated rootlet.
  • R7AL
  • Post-embryonic cell of pedigree TL.apappaaa, male sensory rays, neuron, striated rootlet.
  • R1AR
  • Post-embryonic cell of pedigree V5R.pppppaaa, male sensory rays, neuron, striated rootlet.
  • R3AL
  • Post-embryonic cell of pedigree V6L.papppaaa, male sensory rays, neuron, striated rootlet.
  • R3AR
  • Post-embryonic cell of pedigree V6R.papppaaa, male sensory rays, neuron, striated rootlet.
  • R8AL
  • Post-embryonic cell of pedigree TL.appaaaaa, male sensory rays, neuron, striated rootlet.
  • CEPDL
  • Cephalic neurons, contain dopamine
  • CEPVR
  • Cephalic neurons, contain dopamine
  • OLLR
  • Lateral outer labial neurons
  • CEPDR
  • Cephalic neurons, contain dopamine
  • CEPVL
  • Cephalic neurons, contain dopamine
  • PHAL
  • Phasmid neurons, probably chemosensory
  • PHBL
  • Phasmid neurons, probably chemosensory
  • OLLL
  • Lateral outer labial neurons
  • PHAR
  • Phasmid neurons, probably chemosensory
  • phasmid sensillum
  • bilateral sensory organ in the tail, similar to the amphid in the head.
  • lumbar ganglion
  • The left and right lumbar ganglia lie behind the pre-anal ganglion in the tail, in lateral positions. Each contains 12 neuron cell bodies that send most of their neuronal processes into the ventral nerve cord via lumbar commissures and the pre-anal ganglion. There is no local neuropil in these ganglia in the hermaphrodite, instead they form most synapses in the pre-anal ganglion. Most lumbar neurons have sensory functions. In the adult male tail, these two ganglia gain many additional neurons and have some local neuropil. The lumbar neurons lie in close association with the lateral hypodermis, and most are posterior to the anus.
  • R1BL
  • Post-embryonic cell of pedigree V5L.pppppapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • DA1
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB3
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB5
  • Ventral cord motor neurons, innervate dorsal muscles
  • R2BR
  • Post-embryonic cell of pedigree V6R.papapapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R5BL
  • Post-embryonic cell of pedigree V6L.ppppaapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • DA5
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB1
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB6
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB7
  • Ventral cord motor neurons, innervate dorsal muscles
  • M2 neuron
  • Neuron class of two pharyngeal motor neurons.
  • DA2
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA3
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA8
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB4
  • Ventral cord motor neurons, innervate dorsal muscles
  • MCR
  • Pharyngeal neurons that synapse onto marginal cells
  • R2BL
  • Post-embryonic cell of pedigree V6L.papapapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R5BR
  • Post-embryonic cell of pedigree V6R.ppppaapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R3BL
  • Post-embryonic cell of pedigree V6L.papppapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R4BL
  • Post-embryonic cell of pedigree V6L.pppapapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R4BR
  • Post-embryonic cell of pedigree V6R.pppapapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R8BL
  • Post-embryonic cell of pedigree TL.appaaapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R9BL
  • Post-embryonic cell of pedigree TL.appapapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • DA4
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA6
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA9
  • Ventral cord motor neurons, innervate dorsal muscles
  • R1BR
  • Post-embryonic cell of pedigree V5R.pppppapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R3BR
  • Post-embryonic cell of pedigree V6R.papppapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • R7BL
  • Post-embryonic cell of pedigree TL.apappapa, male sensory rays, neuron, darkly staining tip, open to outside.
  • DA7
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB2
  • Ventral cord motor neurons, innervate dorsal muscles
  • MCL
  • Pharyngeal neurons that synapse onto marginal cells
  • IL2 neuron
  • Neuron class of six ciliated neurons, each of which is one of the two component neurons of the six inner labial sensilla.
  • R6BL
  • Post-embryonic cell of pedigree V6L.pppppapa, male sensory rays, neuron, not darkly staining nor open to outside.
  • R6BR
  • Post-embryonic cell of pedigree V6R.pppppapa, male sensory rays, neuron, not darkly staining nor open to outside.
  • IL1 neuron
  • Neuron class of six ciliated neurons with striated rootlets, each of which is one of two component neurons of the inner labial sensilla.
  • R3_hyp
  • Male sensory ray 3 hypodermal cell, fuses with other ray hypodermal cells to form the tail seam
  • R4_hyp
  • Male sensory ray 4 hypodermal cell, fuses with other ray hypodermal cells to form the tail seam
  • R5_hyp
  • Male sensory ray 5 hypodermal cell, fuses with other ray hypodermal cells to form the tail seam
  • NSM
  • Neuron class of two pharyngeal neurosecretory-motor neurons.
  • ciliated neuron
  • neuron type, neurons that have ciliated nerve endings.
  • PHA
  • Neuron class of two phasmid neurons, type A.
  • PHB
  • Neuron class of two phasmid neurons, type B.
  • CEP
  • Neuron class of four neurons associated with cephalic sensilla.
  • touch receptor neuron
  • neurons that sense body touch, have specialized microtubules in processes.
  • CA neuron
  • Neuron class of nine male-specific neurons, innervate dorsal muscles.
  • SPV
  • Neuron class of two male-specific neurons that innervate male spicule.
  • outer labial neuron
  • neuron type, set of six neurons in the outer labial sensillum.
  • CEM
  • Neuron class of four male-specific neurons associated with cephalic sensilla.
  • DD3
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • DD1
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • DD5
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • HSNL
  • Herm. specific motor neurons (die in male embryo), innervate vulval muscles, serotonergic
  • HSNR
  • Herm. specific motor neurons (die in male embryo), innervate vulval muscles, serotonergic
  • PVN
  • Neuron class of two interneuron/motor neurons, posterior ventral cord, few synapses.
  • DD2
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • DD6
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • DD4
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • AUA
  • Neuron class of two neurons with cell bodies situated in the lateral ganglia.
  • AVBL
  • Ventral cord interneuron, synapses onto VB and DB motor neurons; formerly called beta.
  • PDE
  • Neuron class of two neurons with ciliated endings in the posterior deirid sensilla.
  • PLN
  • Neuron class of two neurons with cell bodies situated in the lumbar ganglion.
  • AVBR
  • Ventral cord interneuron, synapses onto VB and DB motor neurons; formerly called beta.
  • CAN
  • Neuron class of two neurons that are closely associated with the excretory canal.
  • AVAR
  • Ventral cord interneuron, synapses onto VA, DA, and AS motor neurons; formerly called alpha
  • PVP
  • Neuron class of two neurons with cell bodies situated in the pre-anal ganglion.
  • V cell
  • Ventrolateral ectoblast of the body that gives rise to neurons, hypodermis and seam cells.
  • AVAL
  • Ventral cord interneuron, synapses onto VA, DA, and AS motor neurons; formerly called alpha
  • OLL
  • Neuron class of two neurons with ciliated endings in the lateral outer labial sensilla.
  • inner labial neuron
  • neuron type, member of a set of 12 neurons of the inner labial sensilla.
  • AWC-OFF
  • one of the two AWC neurons, stochastically determined, in which the str-2 promoter is inactive
  • EF1
  • Male specific neuron, large cell body in preanal ganglion, synaptic inputs from ray neurons, class one.
  • pharyngeal nervous system
  • The pharyngeal nervous system is composed of 20 pharyngeal neurons which lie completely within the pharynx.
  • CP neuron
  • Neuron class of nine male-specific neurons with cell body in ventral cord and preanal ganglion
  • EF3
  • Male specific neuron, large cell body in preanal ganglion, synaptic inputs from ray neurons, class three.
  • ray
  • male sensory organ; nine bilateral pairs of finger-like rays (numbered 1 to 9, Left/Right) radiate from the tail and are embedded in a cuticlar fan.
  • AWC-ON
  • one of the two AWC neurons, stochastically determined, in which the str-2 promoter is active
  • EF2
  • Male specific neuron, large cell body in preanal ganglion, synaptic inputs from ray neurons, class two.
  • EF4
  • Male specific neuron, large cell body in preanal ganglion, synaptic inputs from ray neurons, class four.
  • AWA
  • Neuron class of two ciliated neurons that are associated with the sheath cells of the amphid sensilla.
  • PHDR
  • The right PHD neuron of the pair of bilateral PHD neurons in a male C. elegans animal.
  • PHDL
  • The left PHD neuron of the pair of bilateral PHD neurons in a male C. elegans animal.
  • PVCL
  • Ventral cord interneuron, cell body in lumbar ganglion, synapses onto VB and DB motor neurons, formerly called delta.
  • PVCR
  • Ventral cord interneuron, cell body in lumbar ganglion, synapses onto VB and DB motor neurons, formerly called delta.
  • OLQ
  • Neuron class of four neurons with ciliated endings and striated rootlets in the dorsal and ventral outer labial sensilla.
  • CEMDL
  • Male specific cephalic neurons (programmed cell death in hermaphrodite embryo) open to outside, possible function in male chemotaxis toward hermaphrodite.
  • CEMDR
  • Male specific cephalic neurons (programmed cell death in hermaphrodite embryo) open to outside, possible function in male chemotaxis toward hermaphrodite.
  • CEMVL
  • Male specific cephalic neurons (programmed cell death in hermaphrodite embryo) open to outside, possible function in male chemotaxis toward hermaphrodite.
  • CEMVR
  • Male specific cephalic neurons (programmed cell death in hermaphrodite embryo) open to outside, possible function in male chemotaxis toward hermaphrodite.
  • EF neuron
  • Neuron class of four large, male-specific interneurons with cell bodies in preanal ganglion. They receive synaptic inputs from ray neurons.
  • head muscle
  • body wall muscle in the head, including first eight cells of each muscle quadrants which are innervated by nerve ring neurons.
  • body wall
  • exterior tube of two concentric tubes that make up the body, includes the epidermal cells and the attached neurons and muscles.
  • AWB
  • Neuron class of two ciliated neurons with flattened, sheet-like endings that are associated with the sheath cells of the amphid sensilla
  • AWC
  • Neuron class of two ciliated neurons with large, flattened, sheet-like endings that are associated with the sheath cells of the amphid sensilla.
  • URX
  • Neuron class of two neurons with cell bodies that are situated sub-dorsally in the pseudocoelomic cavity just posterior to the ring neuropile.
  • hook
  • A small lump on the gubernaculum of the male tail. This structure lies on the ventral surface just anterior and central to the base of the spicule openings and contains a sensory structure called the hook sensillum.
  • ASG
  • Neuron class of two ciliated neurons that are part of the amphid sensilla; the endings are in the amphid channel, which is open to the outside.
  • ASJ
  • Neuron class of two ciliated neurons that are part of the amphid sensilla. The endings are in the amphid channel, which is open to the outside.
  • BAG
  • Neuron class of two neurons with ciliated endings, in the head, with elliptical, closed, sheet-like processes near the cilium, which envelop a piece of hypodermis.
  • ASI
  • Neuron class of two ciliated neurons that are part of the amphid sensilla; the endings are in the amphid channel, which is open to the outside.
  • ASH
  • Neuron class of two ciliated neurons that are part of the amphid sensilla; the endings are in the amphid channel, which is open to the outside.
  • ASE
  • Neuron class of two ciliated neurons that are part of the amphid sensilla; the endings are in the amphid channel, which is open to the outside
  • ASK
  • Neuron class of two ciliated neurons that are part of the amphid sensilla. The endings are in the amphid channel, which is open to the outside.
  • URY
  • Neuron class of four neurons with cell bodies situated anterior to the nerve ring. presynaptic in ring, non-ciliated endings in head, associated with OLQ in embryo
  • ADL
  • Neuron class of two neurons that have dual ciliated endings in the amphid sensillum; the endings are in the amphid channel, which is open to the outside.
  • AFD
  • Neuron class of two ciliated neurons that are part of the amphid sensillum; the endings of AFD have numerous villi, which poke into the amphid sheath cells.
  • command interneuron
  • a type of interneurons whose synaptic output represent a final common pathway to motor neurons. The synaptic activities of command interneurons lead directly to the control of locomotion.
  • GLRVL
  • Set of six cells that form a thin cylindrical sheet between pharynx and ring neuropile; no chemical synapses, but gap junctions with muscle arms and RME motor neurons
  • GLRVR
  • Set of six cells that form a thin cylindrical sheet between pharynx and ring neuropile; no chemical synapses, but gap junctions with muscle arms and RME motor neurons
  • GLRDL
  • Set of six cells that form a thin cylindrical sheet between pharynx and ring neuropile; no chemical synapses, but gap junctions with muscle arms and RME motor neurons
  • GLRDR
  • Set of six cells that form a thin cylindrical sheet between pharynx and ring neuropile; no chemical synapses, but gap junctions with muscle arms and RME motor neurons
  • GLRL
  • Set of six cells that form a thin cylindrical sheet between pharynx and ring neuropile; no chemical synapses, but gap junctions with muscle arms and RME motor neurons
  • GLRR
  • Set of six cells that form a thin cylindrical sheet between pharynx and ring neuropile; no chemical synapses, but gap junctions with muscle arms and RME motor neurons
  • egg-laying apparatus
  • An apparatus for laying eggs of the hermaphrodite reproductive system, consists of the uterus, the uterine muscles, the vulva, the vulval muscles, and a local neuropil formed by the egg-laying neurons.
  • GLR
  • set of six cells that form a thin cylindrical sheet between pharynx and ring neuropile; no chemical synapses, but gap junctions with muscle arms and RME motor neurons, might be glial cells
  • ALN
  • Neuron class of two neurons with cell bodies situated in the lumbar ganglion, send processes anteriorly, which eventually enter the nerve ring; they also have posteriorly directed processes that run into the tailspike.
  • PHD
  • A neuron belonging to a class of 2 bilateral, cholinergic, peptidergic, male-specific, ciliated neurons generated by transdifferentiation from a male PHso1 glial cell in the late L4 larval stage of a male C. elegans animal.
  • FLP
  • Neuron class of two neurons, which have ciliated endings situated immediately dorsal to the lateral inner labial sensilla in the head but have no associated sheath or socket cells; they have flattened processes in this region of the cilium.
  • tail precursor cell
  • Tail lateral ectoblasts that give rise to neurons, hypodermis and glial lineages. While initially identical, after the L2 lethargus the T cell lineages become markedly different between males and hermaphrodites helping to provide the sexually dimorphic tail structures found in males.
  • cuticle
  • a rigid external coating which is secreted by the hypodermis, seam and some transitional epithelial cells which covers the outer body, the major openings into the body cavity from the exterior, and two large sensory bristles, the male spicules. The cuticle of the spicules, the hook, and of some portions of the spicule channels is especially rigid and is probably sclerotized. Similar sclerotic features are occasionally noted in the ventral surface of the male tail fan.
  • dorso-rectal ganglion
  • the ganglion that lies above and behind the rectum in the tail, in close continuity with the anal hypodermal ridge. It contains 3 neuron cell bodies (DVA, DVB and DVC) that send their neuronal processes into the ventral nerve cord via dorso-rectal commissures that encircle the anus. The ganglion contains no local neuropil in the hermaphrodite. In the adult male tail, this ganglion gains additional neurons and some local neuropil.
  • ventral cord blast cell
  • Blast cell lying ventrolaterally in the late embryo and L1 larval stage which divides during the late L1 larva in stereotypical reiterated fashion to give rise to many motor neurons which begin function in the ventral cord and preanal ganglion of the early L2 larva, as well as hypodermal cells (which fuse into hyp7) and a series of programmed cell deaths. In addition, the Pn.p daughters of P3 through P8 lineages persist without fusing into the hyp7 syncytium until mid L3 stage when they can be induced to divide further to produce vulval epithelial cells (vulA - vulF) or more hyp7 cells. P0 is also known as W.
  • ADF
  • Neuron class of two neurons that have dual ciliated endings in the amphid sensillum. The endings are in the amphid channel, which is open to the outside. Processes from lateral cell bodies enter the ventral cord via the amphidial commissures and turn anteriorly to enter the nerve ring. The processes of ADF run near the outside surface and posterior face of the ring, in close association with those of AIZ. They meet at the dorsal mid-line and terminate; there is a gap junction at the point or contact. The main synaptic output is to RIA and AIZ; there are also synapses to SMB, AUA and RIR, usually in dyadic combinations with RIA or AIZ. AWB synapses onto ADF in several places, and there are gap junctions to RIH, ADA and AIA.