small intestine

Intestinum tenue

Digestive

Key points

  • The small intestine extends from the stomach to the caecum and occupies much of the central and lower abdomen.
  • Its successive regions are the duodenum, jejunum and ileum.
  • The intestinal wall has muscular layers that mix and propel contents, and an inner lining adapted for absorption.
  • Blood vessels, lymphatic vessels and nerves reach the jejunum and ileum through their supporting mesentery.

Read the guide: Small intestine: anatomy, location and function

Definition

part of the digestive tract, following the stomach and followed by the large intestine fake

Source: Wikidata · Licence: CC0-1.0

Description from Wikidata (https://www.wikidata.org/), available under CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/).

Relations

Innervation
vagus nerve (X)
Arterial supply
superior mesenteric artery
Venous drainage
hepatic portal vein
Lymphatic drainage
intestinal lymph trunk

Sub-structures

Neighbouring structures

Practice questions

Read more

Wikipedia (English)

Identifiers

TA2
2933
TA98
A05.6.01.001
FMA
7200
UBERON
0002108
Wikidata
Q11090