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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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Epidermal layer. |
hypodermis
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epidermis |
WBbt:0005733
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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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Four processes (canals) of the excretory canal cell each contain a central collecting lumen which feeds to a central lumenal canal in the cell body; the central canal forms a specialized membrane to release fluids into the excretory duct. These five canals form a continuous H-shaped channel which extends almost the full length of the body, generally in contact with the lateral hypodermis and the pseudocoelom. |
excretory canal
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canal |
WBbt:0005775
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cell of epithelium, the layer of cells that cover the external surface of an organism as well as forming an inner lining between the tissues and organs of that organism and the external environment. In C. elegans epithelial cells include epithelium of the alimentary tract, intestinal cells, hypodermis, interfacial cells and somatic gonad cells. |
epithelial cell
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epithelium |
WBbt:0003672
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a type of pharyngeal cell that connects basement membrane to the apices of triangle-shaped pharyngeal lumen. |
marginal cell
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WBbt:0003673
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