• AS neuron
    • Neuron class of eleven motoneurons, with cell bodies in the ventral cord, which innervate dorsal muscles.
  • obsolete AS.2-10 neuron
  • dopaminergic neuron
    • Neuron that uses dopamine (DA) as a neurotransmitter.
  • GABAergic neuron
    • neuron that uses GABA as a vesicular neurotransmitter.
  • glutamatergic neuron
    • neuron that uses glutamate as a vesicular neurotransmitter.
  • serotonergic neuron
    • neuron that uses serotonin as a vesicular neurotransmitter.
  • cholinergic neuron
    • neuron that uses vesicular acetylcholine as a neurotransmitter.
  • W cell
    • Postembryonic neuroblast, analogous to Pn.a cells, also known as P0.
  • mechanosensory neuron
    • neuron that senses and responds to mechanical stimuli, such as touch.
  • AVDL
    • Ventral cord interneuron, synapses onto VA, DA, AS motorneurons; formerly called delta.
  • AVDR
    • Ventral cord interneuron, synapses onto VA, DA, AS motorneurons; formerly called delta.
  • TL
    • Tail seam hypodermal cell, postembryonic blast cell, functions as phasmid socket in L1
  • TR
    • Tail seam hypodermal cell, postembryonic blast cell, functions as phasmid socket in L1
  • somatic blastomere
    • Embryonic cell which descends from the same parent cell as a germline blastomere.
  • AVAL
    • Ventral cord interneuron, synapses onto VA, DA, and AS motor neurons; formerly called alpha
  • AVAR
    • Ventral cord interneuron, synapses onto VA, DA, and AS motor neurons; formerly called alpha
  • PDA
    • Neuron class of one motor neuron, process in dorsal cord, same as Y cell in hermaphrodite, Y.a in male.
  • epithelial cell
    • cell of epithelium, the layer of cells that cover the external surface of an organism as well as forming an inner lining between the tissues and organs of that organism and the external environment. In C. elegans epithelial cells include epithelium of the alimentary tract, intestinal cells, hypodermis, interfacial cells and somatic gonad cells.
  • gland cell
    • A variety of very different cell types which share cytoplasmic features (such as large membrane-bound granules) that suggest a role in secretion, thus termed gland cells.
  • 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.
  • blastocoel
    • The fluid-filled compartment inside the developing embryo at the onset of gastrulation, surrounded by the early blastomeres, into which some cells begin to migrate at gastrulation to create a multi-layered embryo. This internal space later is converted into the pseudocoelom as the embryo develops.
  • DD neuron
    • Neuron class of six motoneurons, with cell bodies in the ventral cord, which innervate dorsal muscles. Each cell has a short, posteriorly directed and a longer, anteriorly directed process emanating from its cell body. The anterior process has a branch, which leaves the ventral cord as a commissure and runs round to the dorsal cord.
  • intestinal cell
    • any of 20 large epithelial cells which form a tube and are mostly situated as bilaterally symmetric pairs around the tubular lumen. Each of these cell pairs forms an intestinal ring ( II-IX int rings). The most anterior intestinal ring (int ring I), however, is made of four cells. Intestinal cells contain large nuclei with large nucleoli and numerous autofluorescent granules in their cytoplasm.
  • intestine
    • A chain of very large cuboidal cells forming a wide central lumen in which food arrives from the posterior pharynx, is digested, and from which waste products proceed to the rectum. Intestinal rings form in groups of two and four cells surrounding the common lumen; thus the epithelium is only one cell deep at any point, with neighboring cells firmly secured to their neighbors by apical adherens junctions. These cells have very large nuclei and many large vacuoles, yolk granules, and other inclusions; the latter increase in number and electron density as the animal ages.
  • 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.