Hindgut
The hindgut (or epigaster) is the posterior (caudal) part of the alimentary canal. In mammals, it includes the distal third of the transverse colon and the splenic flexure, the descending colon, sigmoid colon and rectum. In zoology, the term hindgut refers also to the cecum and ascending colon.
| Hindgut | |
|---|---|
 Profile view of a human embryo estimated at twenty or twenty-one days old. (Hindgut labeled at lower left.) | |
 | |
| Details | |
| Carnegie stage | 10 |
| Precursor | Mesenchyme |
| Identifiers | |
| Latin | metenteron |
| TE | E5.4.9.0.2.0.1 |
| FMA | 45618 |
| Anatomical terminology | |
Structure
Blood supply
Arterial supply is by the inferior mesenteric artery, and venous drainage is to the portal venous system. Lymphatic drainage is to the chyle cistern.
Nerve supply
The hindgut is innervated via the inferior mesenteric plexus. Sympathetic innervation is from the Lumbar splanchnic nerves (L1-L2), parasympathetic innervation is from S2-S4.
Development
Additional images
Abdominal part of digestive tube and its attachment to the primitive or common mesentery. Human embryo of six weeks.
Tail end of human embryo twenty-five to twenty-nine days old._-_ZooKeys-241-077-g006.jpeg)
Metenteron in the milliped Illacme plenipes.
gollark: It's probably going to be (slightly) faster than human messengers, I'd expect, and probably better for bulk delivery.
gollark: It probably has *some* utility even if it's slow, you know. News transmission or something, if slowly.
gollark: So, how much does it doom?
gollark: Wait. Doomsday machine?
gollark: Wow, this chapter really looked longer on my phone.
See also
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.