Digestive System: Small Intestine

Question 1

Continues digestion and nearly all absorption of nutrients occurs in the _____ ______.

Answer 1

small intestine

Question 2

To increase absorptive area, the small intestine displays many ______ _______.

Answer 2

lumen modifications

Question 3

A lumen modification: plicae circulares

Answer 3

(circular folds)

Question 4

A lumen modification: intestinal villi

Answer 4

(“fingers”)

Question 5

A lumen modification: microvilli

Answer 5

(tiny cellular projections)

Question 6

Lacteal

Answer 6

Runs through center of villi for absorption and transport of fats

Question 7

The small intestine is topographically divided into the:

Answer 7

Duodenum, Jejunum, and Ileum