The small intestine Flashcards
1
Q
Which are the parts
A
- Duodenum
- Jejunum
- Ileum
2
Q
What opens up into the duodenum?
A
The pancreatic duct with bile
3
Q
What is the shortest, widest and most stabilised part of the SI?
A
The duodenum
4
Q
How is the SI peritonised?
A
Duodenum: -Retro-peritonised (except for cap) -Cap is intraperitonised Jejunum is intraperitonised Ileum is intraperitonised
5
Q
What are the differences in appearance between the jejunum and the ileum?
A
Jejunum: -Pink ribbon/darker -Few shorter hoop of arcades -Longer vasa recta Ileum: -Paler pinker -Many longer hoops of arcades -Shorter vasa recta
6
Q
What is the blood supply to the Jejunum and the ileum?
A
The superior mesenteric artery
7
Q
Which between the Ileum and the jejunum has more fat in the mesentery?
A
The Ileum
8
Q
What are the circular folds like in the jejunum and the ileum?
A
Jejunum: many, taller , closely packed
Ileum: shorter, more sparse
9
Q
What is an arcade?
A
anastomosis of the branches of the superior mesenteric arteries in the ileum and the jejunum
10
Q
What is a vasa recta?
A
Straight braches of the arcades
