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
|
gut |
WBbt:0005772
|
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
|
Epidermal layer. |
hypodermis
|
epidermis |
WBbt:0005733
|
Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath |
AWCL
|
lineage name: ABplpaaaaap |
WBbt:0003827
|
Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath |
AWCR
|
lineage name: ABprpaaaaap |
WBbt:0003826
|
neuron of phasmid sensillum |
phasmid neuron
|
|
WBbt:0006753
|
neuron of the amphid sensillum |
amphid neuron
|
amphid sensory neuron |
WBbt:0005394
|
cells that support sensory neurons, similar to glial cells in vertebrates. A category which collectively refers to socket cells, sheath cells, and structural cells, or their processes. All of these cells extend long processes which serve a supporting role, rather like glia, to form a protective environment around sensory neuron endings. In addition, some of these cells extend broad thin processes from their somata which wrap around neuronal ganglia, again in a glia-like fashion |
accessory cell
|
support cell |
WBbt:0005762
|
one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil |
ASJL
|
lineage name: ABalpppppppa |
WBbt:0003886
|
one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil |
ASJR
|
lineage name: ABpraaappppa |
WBbt:0003885
|
|
interneuron
|
|
WBbt:0005113
|