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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
|
|
female genital. |
vulva
|
|
WBbt:0006748
|
|
type of cells that make up muscle layers in the pharynx. |
pharyngeal muscle cell
|
|
WBbt:0005451
|
|
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
|
|
|
copulatory spicule
|
|
WBbt:0005312
|
|
male sensory organ; nine bilateral pairs of finger-like rays (numbered 1 to 9, Left/Right) radiate from the tail and are embedded in a cuticlar fan. |
ray
|
male sensory ray |
WBbt:0006941
|
