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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
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gut |
WBbt:0005772
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type of cells that make up muscle layers in the pharynx. |
pharyngeal muscle cell
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|
WBbt:0005451
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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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Posterior distal tip cell, inhibit meiosis in neighbouring germ cells, lead gonad during morphogenesis, herm gonad |
posterior distal tip cell
|
gon herm dtc P |
WBbt:0004506
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Anterior distal tip cell, inhibit meiosis in neighbouring germ cells, lead gonad during morphogenesis, herm gonad |
anterior distal tip cell
|
gon herm dtc A |
WBbt:0004520
|
|
a single, H-shaped cell which lies just above the anus and connects the roof of the anal canal to the dorsal bodywall; its contractions act to increase the size of the anal opening by lifting the roof of the rectum and hence facilitate expulsion of intestinal contents. |
anal depressor muscle
|
dilator muscle |
WBbt:0004292
|
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a saddle-shaped muscle cell that encircles the intestinal-rectal valve |
anal sphincter muscle
|
lineage name: ABprpppppap |
WBbt:0005798
|
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intestinal muscle cell, attach to intestine and body wall anterior to anus |
intestinal muscle
|
stomato-intestinal muscle |
WBbt:0005796
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