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
|
body wall muscle in the head, including first eight cells of each muscle quadrants which are innervated by nerve ring neurons. |
head muscle
|
head body wall muscle |
WBbt:0006761
|
Amphid neuron, prob. chemosensory |
ADFL
|
lineage name: ABalpppppaa |
WBbt:0004003
|
Amphid neuron, prob. chemosensory |
ADFR
|
lineage name: ABpraaappaa |
WBbt:0003999
|
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 |
ASHL
|
lineage name: ABplpaappaa |
WBbt:0003890
|
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 |
ASHR
|
lineage name: ABprpaappaa |
WBbt:0003889
|
Interneuron, projects along ventral cord to ring |
PVQL
|
lineage name: ABplapppaaa |
WBbt:0004076
|
Interneuron, projects along ventral cord to ring |
PVQR
|
lineage name: ABprapppaaa |
WBbt:0004074
|
Amphid neuron, prob. chemosensory |
ADLL
|
lineage name: ABalppppaad |
WBbt:0003997
|
Amphid neuron, prob. chemosensory |
ADLR
|
lineage name: ABpraaapaad |
WBbt:0003995
|
Ring interneuron |
RICL
|
lineage name: ABplppaaaapp |
WBbt:0003941
|
Ring interneuron |
RICR
|
lineage name: ABprppaaaapp |
WBbt:0003940
|
Pharyngeal interneurons, ant sensory. |
I2L
|
lineage name: ABalpappaapa |
WBbt:0004744
|
Pharyngeal interneurons, ant sensory. |
I2R
|
lineage name: ABarapapaapa |
WBbt:0004743
|
|
spicule protractor muscle
|
|
WBbt:0005826
|
Neuron class of one asymmetric interneuron, projects along ventral cord to ring, sends process into tail spike. |
PVR
|
lineage name: Caappv |
WBbt:0004072
|
Neuron class of one male-specific sensory neuron associated with hook sensillum, receptor anterior to cloaca in male. |
HOB
|
lineage name: P10.ppap |
WBbt:0004761
|
neuron in the male ray. |
ray neuron
|
|
WBbt:0006971
|
Interneuron, posterior ventral cord, few synapses. |
PVWR
|
lineage name: TR.ppa |
WBbt:0004064
|
Interneuron, posterior ventral cord, few synapses. |
PVWL
|
lineage name: TL.ppa |
WBbt:0004066
|