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neuron with cell body associated with the ventral nerve cord. |
ventral cord neuron
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ventral cord motoneuron |
WBbt:0005300
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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. |
intestine
|
gut |
WBbt:0005772
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Epidermal layer. |
hypodermis
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epidermis |
WBbt:0005733
|
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Longitudinal bands of muscle cells surrounding animal body, with one band running in each quadrant of the body, regulated contraction and relaxation of these muscles cause locomotion. |
body wall musculature
|
body muscle |
WBbt:0005813
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body wall muscle in the head, including first eight cells of each muscle quadrants which are innervated by nerve ring neurons. |
head muscle
|
head body wall muscle |
WBbt:0006761
|
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the most extensive region of neuropil in the animal, consists of a large toroidal bundle of processes. |
nerve ring
|
circumpharyngeal nerve ring |
WBbt:0006749
|
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Ganglion that lies at the anterior limit of the ventral nerve cord, near the ventral ganglion and nerve ring in the head posterior to the excretory pore. It is open and continuous with the region containing the motoneurons of the ventral cord. In the early L1 this ganglion holds 12 neuron cell bodies plus one neuroblast (Sulston and Horvitz, 1977; White et al., 1986). In the adult animal, the ganglion holds 20 neuron cell bodies. |
retrovesicular ganglion
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WBbt:0005656
|
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ganglion anterior to the anus. |
preanal ganglion
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WBbt:0005448
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