Colon

Question 1

Still occasionally used for the evaluation of colonic obstruction, fistulas, and in old, seriously ill or debilitated patients

Answer 1

Single-contrast barium enema

Question 2

Favored for the detection of small lesions (<1cm), for documentation of inflammatory bowel disease and for detailed imaging evaluation of the recrum

Answer 2

Double contrast barium enema

Question 3

Limitation of CT and MR imaging for initial staging of colorectal carcinoma

Answer 3

Determining involvement of regional lymph nodes

Question 4

More accurate than CT or MR in determining local tumor extent of rectal carcinomas and is used in evaluation of other rectal and perirectal diseases

Answer 4

Transrectal ultrasound

Question 5

Large intestine consists of

Answer 5

Cecum, appendix, colon, rectum and anal canal

Question 6

Large intestine is approximately _____m in length

Answer 6

1.5 m

Question 7

Three longitudinal bands of muscle that traverse the colon, shortening it to form haustra

Answer 7

Taenia coli

Question 8

Part of the colon that absorbs water

Answer 8

Cecum and ascending colon

Question 9

Large blind pouch that extends below the level of the ileocecal valve

Answer 9

Cecum

Question 10

Cecum generally lies where

Answer 10

Right iliac fossa

Question 11

Consists of two lips that project into the cecum forming a sometimes prominent mass

Answer 11

Ileocecal valve

Question 12

The proximal, more posterior curve of hepatic flexure is closely related to

Answer 12

Descending duodenum and right kidney

Question 13

The distal, anterior curve of the hepatic flexure is closely related to the

Answer 13

Gallbladder

Question 14

Limits the superior extent of small bowel loops

Answer 14

Transverse mesocolon

Question 15

Splenic flexure is closely related to the

Answer 15

Tail of the pancreas and caudal aspect of the spleen

Question 16

Splenic flexure is anchored to the diaphragm by the _____ which serves as a boundary between disease processes of the left subphrenic space and the left paracolic gutter

Answer 16

Phrenicocolic ligament

Question 17

Intraperitoneal segments of colon

Answer 17

Transverse and sigmoid colon

Question 18

Sigmoid colon penetrates the peritoneum at the level of

Answer 18

S2 to S4

Question 19

Rectum extends for approximately ____ cm in close relationship with the sacrum

Answer 19

12

Question 20

Covered part of rectum by peritoneum

Answer 20

Ventral and lateral aspects

Question 21

Anal canal length

Answer 21

3 to 4 cm long

Question 22

Thickness of the wall of the colon does not exceed ____mm

Answer 22

5 mm