Four regions of the colon

Question 1

What are the four regions of the colon?

Answer 1

1. Ascending colon
2. Transverse colon
3. Descending colon
4. Sigmoid colon

Question 2

Where does the ascending colon begin?

Answer 2

superior border of cecum

Question 3

Ascending colon ascends along

Answer 3

right lateral and posterior wall of
peritoneal cavity

Question 4

The ascending colon is to inferior surface of the liver and bends at

Answer 4

right colic flexure (hepatic flexure)

Question 5

Where does the tansverse colon cross

Answer 5

Crosses abdomen from right to left; turns at left colic flexure (splenic flexure

Question 6

What is transverse colon supported by

Answer 6

transverse mesocolon

Question 7

What is transverse colon separated from

Answer 7

from anterior abdominal wall by greater
omentum

Question 8

Descending Colon proceeds inferiorly along left side to the

Answer 8

iliac fossa (inner surface of left ilium

Question 9

Descending Colon Is retroperitoneal,

Answer 9

firmly attached to abdominal wall

Question 10

Sigmoid Colon Lies posterior to

Answer 10

urinary bladder

Question 11

Sigmoid Colon starts at

Answer 11

sigmoid flexure

Question 12

Where does sigmoid colon empty into

Answer 12

rectum

Question 13

Sigmoid colon is an ____segment

Answer 13

Is an S-shaped segment, about 15 cm (6 in.) long