Small Bowel Anatomy Flashcards
1
Q
How long is the Duodenum?
A
~12 inches- thus the name:duodenum!
2
Q
What marks the end of the duodenum and the start of jejunum?
A
Ligament of Treitz
3
Q
What is the length of the entire small bowel?
A
~6 meters (20 feet)
4
Q
Blood supply of small bowel
A
Branches of the superior mesenteric artery
5
Q
What does the small bowel do?
A
Major site of digestion and absorption
6
Q
What are the plicae circulares?
A
Plicae means: “folds”; circularis: circular, thus folds of mucosa in small bowel lumen
7
Q
What are the major structural difference between the jejunum and ileum
A
Jejunum: Long vasa rectae large plicae circulares thicker wall Ileum - shorter vasa rectae Small plicae circulares thinner wall (Think: ileum is INFERIOR)
8
Q
What does the terminal ileum absorb?
A
B12
Fatty acid
Bile salts
