Jejunum and Ileum Flashcards
the jejunum makes up what of the small intestine?
proximal 2/5
the ileum makes up what of the small intestine?
distal 3/5
what segment of the GI tract is most involved with nutrient uptake and water absorption?
the Jejunum
what segment of the GI tract is involved with fat soluble, vitamins, B-12 and bile salts?
the Ileum
in the small intestines what are the small circular folds called?
Plicae circulares
what are the aggregations of lymphoid tissue found within the walls of the intestine?
Peyer’s patches
what are the terminal branches of the arteries in the small intestine that travel thru the mesentery?
Vasa recta
where are peyer’s patches present?
ileum
T/f the jejunum is light pink
false, it is dark red
T/F the Jejunum has a greater vascular supply
True, it needs it for its absorptipon
which has a larger diameter the ileum or jejunum
the jejunum, it needs it for its larger surface area
T/F the ileum has may tall plicae circulares
False, they are short and there is very few
what is the blood supply of the jejunum and ileum?
the superior mesenteric artery
what is the innervation of the jejunum and ileum?
superior mesenteric plexus
what is one pouching called in the ileum?
Ileal (meckel’s) diverticulum
