kayla MATTEW AND ERIKA

2.  part of the gastrointestinal tract
following the stomach and followed
by the large intestine
 where much of the digestion and
absorption of food takes place
 primary function is to absorb the
nutrients and minerals found in food

4.  average length of the small intestine
 in an adult male
- 22 feet 6 inches (6.9 m)
 in the adult female
- 23 feet 4 inches (7.1 m)

5. The small intestine is where most
digestion takes place.
It is structurally divided into three
parts:
› duodenum
› jejunum
› ileum

7.  major distinguishing feature is the presence of duodenal
(Brunner's) glands in the submucosa
 where most of the breakdown of food in the small
intestines occurs.
 mucous cells of these glands produce an alkaline secretion
 protects the duodenal lining from the acidity of the chyme
 raises the luminal pH to the optimum level for pancreatic
enzyme activity
 also the point of entry for the bile and pancreatic ducts
 exhibits fingerlike or leaflike villi
 few goblet cells

8. The duodenum consists of four parts, with
the first three forming a "C" shape.
› first or superior part begins at the pylors, passing
laterally for a short distance before curving into the
superior duodenal flexure
› second or descending part passes from the superior
into the inferior duodenal flexure
› third or inferior part passes from the inferior
flexure, crossing the major artery and the major
vein and also the spinal column
› forth or ascending part passes over the aorta, and
curves past the pancreas to the duodenojejunal
flexure

9. Duodenum-Brunner's Glands

10.  has long leaflike vilii
 many plicae circulares
 an intermediate number of goblet cells
The key to its identification is that although it
has villi (part of the small intestine), it
doesn’t contain Brunner's glands or Peyer's
patches.

12.  final and longest section of the small intestine
 jejunum and ileum both suspended by a double
layer of peritoneum that allows these parts to
move more freely within the abdomen
 responsible for the final stages of protein and
carbohydrate digestion
 has fewer villi, which are short and broad-
tipped (clublike)
 relatively abundant goblet cells

13. Goblet Cells

14.  colon cancer
 Small bowel bacterial overgrowth syndrome
 Paralytic ileus
 Maropthisis
 Crohn's disease
 Celiac disease
 Carcinoid
 Meckel's Diverticulum
 Gastric dumping syndrome
 Infectious diseases
 Mesenteric ischemia
 Intussusception