A group of six equivalent cells forms a tightly constructed `valve` that links the posterior bulb of the pharynx to the anterior four cells of the intestine. These six cells comprise a small epithelial channel with a cuticular lining in continuity with the pharyngeal cuticle and link the lumen of the pharynx to the large lumen of the anterior intestine. |
pharyngeal-intestinal valve
|
cardia |
WBbt:0005767
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Epidermal layer. |
hypodermis
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epidermis |
WBbt:0005733
|
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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the feeding organ, a neuro-muscular pump in the head of the animal, used to ingest food, bacteria suspended in liquid, filter them out, grind them up and transport posteriorly into the instestine. |
pharynx
|
esophagus |
WBbt:0003681
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The organ in which the eggs are developed and protected until laid. |
uterus
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|
WBbt:0006760
|
posterior region, from rectum to the end |
tail
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|
WBbt:0005741
|
|
rectal gland cell
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|
WBbt:0005799
|
|
reproductive system
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|
WBbt:0005747
|