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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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The extracellular sinus formed by the excretory duct and pore cells. |
Excretory duct
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WBbt:0005777
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the space in the center of pharynx which allows the passage of food. |
pharyngeal lumen
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WBbt:0005790
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The outlet of the excretory sinus to the exterior environment through the cuticle, on the ventral side of the head, just behind the nerve ring. |
excretory pore
|
pore |
WBbt:0005778
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basal lamina
|
basement membrane |
WBbt:0005756
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openning of the rectum |
anus
|
anus interface |
WBbt:0005364
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An acellular thin cuticle whip formed at the very end of the tail during embryogenesis. |
tail spike
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WBbt:0006979
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a rigid external coating which is secreted by the hypodermis, seam and some transitional epithelial cells which covers the outer body, the major openings into the body cavity from the exterior, and two large sensory bristles, the male spicules. The cuticle of the spicules, the hook, and of some portions of the spicule channels is especially rigid and is probably sclerotized. Similar sclerotic features are occasionally noted in the ventral surface of the male tail fan. |
cuticle
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exoskeleton |
WBbt:0005755
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A fluid-filled space enclosed on the outside by the basal laminae of the bodywall tissues, principally those of the bodywall muscles and the hypodermis. Within this space the digestive tract and reproductive tract lie separately, each enclosed by its own basal lamina. Intercellular signals, nutrients and waste products can travel between all tissues bordering this space. |
pseudocoelom
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body cavity |
WBbt:0005745
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cuticle-lined lumenal region surrounded by pharyngeal epithelium, situated at the anterior end of pharynx. |
buccal cavity
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WBbt:0005255
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Small linear ridges running along the lateral lines of the cuticle, lengthwise along the body; these thickenings lie in register with the seam cells which likely produce them and are present in the cuticle of the L1, dauer and adult stages, but not in other larval stages. The alae are suspected to provide better traction when the animal generates a bodywave. Since the animal usually lies on its side, the alae are in perfect position to catch against the substrate. |
cuticular ala
|
alae |
WBbt:0007832
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intestinal lumen
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WBbt:0005791
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The shell or external calcareous covering of an egg |
eggshell
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WBbt:0005843
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a structure surrounds the lumen of pharyngeal terminal bulb that is formed by folded cuticles and serves the function of grinding up food, bacteria. |
grinder
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WBbt:0008408
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rectal lumen
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WBbt:0005731
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The remnant the midbody from the first embryonic cell division, eventually becomes absorbed by the EMS blastomere. |
midbody remnant
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WBbt:0008609
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The fluid-filled compartment inside the developing embryo at the onset of gastrulation, surrounded by the early blastomeres, into which some cells begin to migrate at gastrulation to create a multi-layered embryo. This internal space later is converted into the pseudocoelom as the embryo develops. |
blastocoel
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WBbt:0008427
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A hole in the ventral/posterior side of the embryo caused by the inward flow of cells during gastrulation. |
blastopore
|
gastrulation pore |
WBbt:0008428
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