• mechanosensory neuron
  • neuron that senses and responds to mechanical stimuli, such as touch.
  • obsolete mechanosensory neurons
  • HO neuron
  • Hook sensory neurons.
  • CEPDL
  • Cephalic neurons, contain dopamine
  • PHAL
  • Phasmid neurons, probably chemosensory
  • CEPVL
  • Cephalic neurons, contain dopamine
  • OLLL
  • Lateral outer labial neurons
  • PHAR
  • Phasmid neurons, probably chemosensory
  • CEPDR
  • Cephalic neurons, contain dopamine
  • CEPVR
  • Cephalic neurons, contain dopamine
  • OLLR
  • Lateral outer labial neurons
  • PHBL
  • Phasmid neurons, probably chemosensory
  • DB4
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA8
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA9
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB3
  • Ventral cord motor neurons, innervate dorsal muscles
  • MCR
  • Pharyngeal neurons that synapse onto marginal cells
  • DA7
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB6
  • Ventral cord motor neurons, innervate dorsal muscles
  • M2 neuron
  • Neuron class of two pharyngeal motor neurons.
  • MCL
  • Pharyngeal neurons that synapse onto marginal cells
  • DA1
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA2
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA3
  • Ventral cord motor neurons, innervate dorsal muscles
  • IL2 neuron
  • Neuron class of six ciliated neurons, each of which is one of the two component neurons of the six inner labial sensilla.
  • DA4
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA5
  • Ventral cord motor neurons, innervate dorsal muscles
  • DA6
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB1
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB2
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB5
  • Ventral cord motor neurons, innervate dorsal muscles
  • DB7
  • Ventral cord motor neurons, innervate dorsal muscles
  • ciliated neuron
  • neuron type, neurons that have ciliated nerve endings.
  • PHA
  • Neuron class of two phasmid neurons, type A.
  • 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.
  • NSM
  • Neuron class of two pharyngeal neurosecretory-motor neurons.
  • PHB
  • Neuron class of two phasmid neurons, type B.
  • CEP
  • Neuron class of four neurons associated with cephalic sensilla.
  • sensillum
  • sensory organ, consists of sensory neurons and supporting cells.
  • CA neuron
  • Neuron class of nine male-specific neurons, innervate dorsal muscles.
  • touch receptor neuron
  • neurons that sense body touch, have specialized microtubules in processes.
  • CEM
  • Neuron class of four male-specific neurons associated with cephalic sensilla.
  • PLM
  • Neuron class of two posterior sensory neurons that transduce touch stimuli.
  • ALM
  • Neuron class of two anterior sensory neurons that transduce touch stimuli.
  • outer labial neuron
  • neuron type, set of six neurons in the outer labial sensillum.
  • SPV
  • Neuron class of two male-specific neurons that innervate male spicule.
  • HSNR
  • Herm. specific motor neurons (die in male embryo), innervate vulval muscles, serotonergic
  • DD4
  • 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
  • DD6
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • PVN
  • Neuron class of two interneuron/motor neurons, posterior ventral cord, few synapses.
  • DD1
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • DD2
  • Ventral cord motor neurons, reciprocal inhibitors, chnage synaptic pattern during postembryonic development
  • DD3
  • 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
  • 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.
  • AUA
  • Neuron class of two neurons with cell bodies situated in the lateral ganglia.
  • CAN
  • Neuron class of two neurons that are closely associated with the excretory canal.
  • AVBL
  • Ventral cord interneuron, synapses onto VB and DB motor neurons; formerly called beta.
  • AVBR
  • Ventral cord interneuron, synapses onto VB and DB motor neurons; formerly called beta.
  • AVAR
  • Ventral cord interneuron, synapses onto VA, DA, and AS motor neurons; formerly called alpha
  • R2B
  • Neuron class of two male-specific sensory ray neurons type B of ray two.
  • R6B
  • Neuron class of two male-specific sensory ray neurons type B of ray six.
  • R7B
  • Neuron class of two male-specific sensory ray neurons type B of ray seven.
  • V cell
  • Ventrolateral ectoblast of the body that gives rise to neurons, hypodermis and seam cells.
  • PVP
  • Neuron class of two neurons with cell bodies situated in the pre-anal ganglion.
  • R1A
  • Neuron class of two male-specific sensory ray neurons type A of ray one.
  • R4A
  • Neuron class of two male-specific sensory ray neurons type A of ray four.
  • R4B
  • Neuron class of two male-specific sensory ray neurons type B of ray four.
  • R6A
  • Neuron class of two male-specific sensory ray neurons type A of ray six.
  • R8A
  • Neuron class of two male-specific sensory ray neurons type A of ray eight.
  • R9B
  • Neuron class of two male-specific sensory ray neurons type B of ray nine.
  • OLL
  • Neuron class of two neurons with ciliated endings in the lateral outer labial sensilla.
  • AVAL
  • Ventral cord interneuron, synapses onto VA, DA, and AS motor neurons; formerly called alpha
  • R3B
  • Neuron class of two male-specific sensory ray neurons type B of ray three.
  • inner labial neuron
  • neuron type, member of a set of 12 neurons of the inner labial sensilla.
  • 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.
  • R3A
  • Neuron class of two male-specific sensory ray neurons type A of ray three.
  • R5B
  • Neuron class of two male-specific sensory ray neurons type B of ray five.
  • R8B
  • Neuron class of two male-specific sensory ray neurons type B of ray eight.
  • AWCR
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • AWAL
  • 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
  • AWCL
  • 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
  • AWBR
  • Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath
  • ADE
  • Neuron class of two sensory neurons of anterior deirids, sensory receptors in lateral alae, contain dopamine.
  • AWC-OFF
  • one of the two AWC neurons, stochastically determined, in which the str-2 promoter is inactive
  • AWC-ON
  • one of the two AWC neurons, stochastically determined, in which the str-2 promoter is active
  • CP neuron
  • Neuron class of nine male-specific neurons with cell body in ventral cord and preanal ganglion
  • pharyngeal nervous system
  • The pharyngeal nervous system is composed of 20 pharyngeal neurons which lie completely within the pharynx.
  • EF1
  • Male specific neuron, large cell body in preanal ganglion, synaptic inputs from ray neurons, class one.
  • EF2
  • Male specific neuron, large cell body in preanal ganglion, synaptic inputs from ray neurons, class two.
  • EF3
  • Male specific neuron, large cell body in preanal ganglion, synaptic inputs from ray neurons, class three.
  • 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.
  • R7A
  • Neuron class of two male-specific neurons that are associated with seventh male sensory ray, A neuron type.
  • PVCR
  • Ventral cord interneuron, cell body in lumbar ganglion, synapses onto VB and DB motor neurons, formerly called delta.
  • R9A
  • Neuron class of two male-specific neurons that are associated with ninth male sensory ray, A neuron type.
  • PVCL
  • Ventral cord interneuron, cell body in lumbar ganglion, synapses onto VB and DB motor neurons, formerly called delta.
  • R5A
  • Neuron class of two male-specific neurons that are associated with fifth male sensory ray, A neuron type.
  • OLQ
  • Neuron class of four neurons with ciliated endings and striated rootlets in the dorsal and ventral outer labial sensilla.
  • CEMVR
  • Male specific cephalic neurons (programmed cell death in hermaphrodite embryo) open to outside, possible function in male chemotaxis toward hermaphrodite.
  • 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.
  • 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.
  • EF neuron
  • Neuron class of four large, male-specific interneurons with cell bodies in preanal ganglion. They receive synaptic inputs from ray neurons.
  • AWB
  • Neuron class of two ciliated neurons with 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.
  • AWC
  • Neuron class of two ciliated neurons with large, flattened, sheet-like endings that are associated with the sheath cells of the amphid sensilla.
  • 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
  • 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
  • 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
  • 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.
  • 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
  • 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.
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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.
  • 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
  • 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.
  • 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.
  • 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
  • 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
  • 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.
  • 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.
  • 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
  • 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
  • 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
  • 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.
  • 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
  • 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
  • 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
  • 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.
  • 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.
  • XXX cell
  • Two embryonic hypodermal cells (XXXL, XXXR) that may provide a scaffold for the early organization of ventral bodywall muscles and the various socket cells in the lateral and ventral lips. Their cell bodies soon crawl posteriorly, and their processes separate the amphid nerve from the mechanosensory nerves in the late embryo. The XXX processes later retract, and the XXX cell bodies remain in the ventrolateral bodywall near the cell bodies of the posterior arcade and some socket cells where they perform a neurohumoral function, as they retain short processes bordering the pseudocoelom and contain some secretory vesicles.
  • 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.
  • 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
  • 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.
  • 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
  • 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.