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
|
Epidermal layer. |
hypodermis
|
epidermis |
WBbt:0005733
|
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
|
Neuron class of twelve motoneurons, distributed along the ventral cord, which innervate ventral body muscles. |
VA neuron
|
|
WBbt:0005339
|
Neuron class of eleven motoneurons, distributed along the ventral cord, which innervate ventral body muscles. |
VB neuron
|
|
WBbt:0005336
|
Amphid neuron, prob. chemosensory |
ADLL
|
lineage name: ABalppppaad |
WBbt:0003997
|
Amphid neuron, prob. chemosensory |
ADLR
|
lineage name: ABpraaapaad |
WBbt:0003995
|
Neuron, ciliated ending in head, no supporting cells, associated with ILso |
FLPR
|
lineage name: ABprapaaapad |
WBbt:0004797
|
Neuron, ciliated ending in head, no supporting cells, associated with ILso |
FLPL
|
lineage name: ABplapaaapad |
WBbt:0004798
|
Ring interneuron, anteriorly projecting process that runs sublaterally, synapses to anterior body muscles in L1 |
SABD
|
lineage name: ABplppapaap |
WBbt:0004999
|
Ring interneuron, anteriorly projecting process that runs sublaterally, synapses to anterior body muscles in L1 |
SABVL
|
lineage name: ABplppapaaaa |
WBbt:0004998
|
Ring interneuron, anteriorly projecting process that runs sublaterally, synapses to anterior body muscles in L1 |
SABVR
|
lineage name: ABprppapaaaa |
WBbt:0004997
|