small intestine in dogs

Subdivision of digestive tract that connects the stomach to the large intestine and is where much of the digestion and absorption of food takes place (with the exception of ruminants). The mammalian small intestine is long and coiled and can be differentiated histologically into: duodenum, jejunem, ileum[WP,cjm,Kardong]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the small intestine is

Subdivision of digestive tract that connects the stomach to the large intestine and is where much of the digestion and absorption of food takes place (with the exception of ruminants). The mammalian small intestine is long and coiled and can be differentiated histologically into: duodenum, jejunem, ileum[WP,cjm,Kardong]. The atlas records it as a organ at the organ scale in the dog.

Where the small intestine is

It sits within the digestive system. Positioned deliberately as part of this species body plan.

What the small intestine connects to

The atlas records 29 typed relationships for it, across 7 kinds of connection. part of digestive tract, intestine and organ.

Supply and innervation

Arterial supply: superior pancreaticoduodenal artery. Venous drainage: superior mesenteric vein.

Also called

Also recorded as small bowel, small intestine, anterior intestine, intestinum tenue and mid intestine. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002108, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: digestive tract, intestine and organ.
• A kind of: anatomical structure and digestive system element.
• contains: crypt of Lieberkuhn of small intestine, duodenum, epithelium of small intestine, ileum, jejunum and lamina propria of small intestine, and 10 more.
• contributes to morphology of: intestine, crypt of Lieberkuhn of small intestine, duodenum, ileum and jejunum.
• connects: ileocecal junction.
• Drained by: superior mesenteric vein.
• Supplied by: superior pancreaticoduodenal artery.

Questions

Where is the small intestine?

It sits within the digestive system. Positioned deliberately as part of this species body plan.

What does the small intestine connect to?

Part of: digestive tract, intestine and organ.

Is the small intestine the same in other species?

This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.