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
|
a large process bundle that runs along the vental mid-line extending from the ventral region of the nerve ring. |
ventral nerve cord
|
ventral cord |
WBbt:0005829
|
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
|
neuron with its cell body situated in the tail, posterior to rectum. |
tail neuron
|
|
WBbt:0006759
|
neuron of the pharyngeal nervous system. |
pharyngeal neuron
|
|
WBbt:0005439
|
the most extensive region of neuropil in the animal, consists of a large toroidal bundle of processes. |
nerve ring
|
circumpharyngeal nerve ring |
WBbt:0006749
|
neuron that senses external stimuli and transduce them to signals internal to the organism. |
sensory neuron
|
|
WBbt:0005759
|
neuron type, member of a set of 12 neurons of the inner labial sensilla. |
inner labial neuron
|
IL neuron |
WBbt:0005117
|
neuron type, set of six neurons in the outer labial sensillum. |
outer labial neuron
|
OL neuron |
WBbt:0006801
|
Neuronal process of an amphid neuron. |
amphid process
|
|
WBbt:0005393
|
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. |
intestinal cell
|
|
WBbt:0005792
|
neuron whose cell body is in the dorsal-rectal ganglion. |
dorsal-rectal ganglion neuron
|
dorso-rectal ganglion neuron |
WBbt:0005801
|
ganglion in the tail region (posterior to rectum). |
tail ganglion
|
|
WBbt:0006977
|