SMALL INTESTINE X LARGE INTESTINE

Question 1

Is a convoluted tube, 6-7 meters (about 20 feet) long in a cadaver but only about 2 meters (6 feet) long during life because of its muscle tone.
It extends from the pyloric sphincter to the ileocecal valve.

Answer 1

Small intestine

Question 2

The small intestine is suspended by a double layer of peritoneum, the fan-shaped [. ] , from the posterior abdominal wall, and it lies, framed laterally and superiorly by the large intestine, in the abdominal cavity.

Answer 2

Mesentery

Question 3

Three Parts of the Small Intestine
(No Actual Division)

Answer 3

Duodenum
Jejunum
Ileum

Question 4

Is the first 25 centimeters (10 inches) of the Small Intestine which form a double loop. It extends from the pyloric sphincter and curves around the head of the pancreas.

Answer 4

Duodenum

Question 5

Four Parts of the Duodenum:

Answer 5

Superior Duodenum
Descending Duodenum
Transverse Duodenum
Ascending Duodenum

Question 6

Is the first part of the duodenum that extends up and to the (R) including the duodenal cap or bulb.

Answer 6

Superior Duodenum

Question 7

Passes downward to the (R) where the Common Bile Duct (CBD) opens into it.

Answer 7

Descending Duodenum

Question 8

Passes to the (L) across the midline.

Answer 8

Transverse Duodenum

Question 9

Passes up behind the stomach to join with the Jejunum.

Answer 9

Ascending Duodenum

Question 10

Approximately 7.5cm to the pylorus is the [. ]which bile and pancreatic juice enter the duodenum.

Answer 10

Hepato-Pancreatic Ampulla

Question 11

Continuous with the duodenum, extends for 2.5 meters (about 8 feet) long.

Answer 11

Jejunum

Question 12

The terminal portion of the small intestine, is about 3.6 meters (12 feet) long and joins the large intestine at the ileocecal valve. It is located inferiorly and somewhat to the right in the abdominal cavity, but its major portion lies in the hypogastric region.

Answer 12

Ileum

Question 13

Is about 1.5 meters (5 feet) long and extends from the ileocecal junction to the anus. It forms an inverted “U” shaped structure that passes up from the (R) lower abdomen to the (R) upper abdomen.

It descends to the (L) lateral abdomen to the pelvis.

Answer 13

Large Intestine or Colon

Question 14

FOR THE PURPOSE OF LOCALIZING THE DISEASE, THE COLON IS DIVIDED INTO 9 PARTS:

Answer 14

Cecum
Ascending Colon
Hepatic Flexure
Transverse Colon
Splenic Flexure
Descending Colon
Sigmoid or Pelvic Colon
Rectum
Anal Canal

Question 15

Is that part of the colon that forms a pouch below the ileocecal junction. Its lower end is rounded and closed except an opening to the appendix where it is attached.

Answer 15

Cecum

Question 16

Varies in length from 2-6 inches in length. It usually lies below the cecum but may also lie behind, medial or lateral to the cecum.

Answer 16

Vermiform Appendix

Question 17

The [. ] is a continuation with the cecum that is why, feces or fecal material from the cecum may pass in and back out of the appendix.

Answer 17

Lumen or the Cavity of the Appendix

Question 18

Passes up from the Cecum to the under surface of the liver anterior to the (R) kidney.

Answer 18

Ascending Colon

Question 19

Is a bend of the colon to the (L) under the (R) liver surface.

Answer 19

Hepatic Flexure/(R) Colic

Question 20

Passes across the upper abdomen from the hepatic flexure to the spleen in the (L) upper abdomen.

Answer 20

Transverse Colon

Question 21

Is a bend of the colon where the transverse colon ends.

Answer 21

Splenic Flexure / (L) Colic

Question 22

Extends down from the splenic flexure to the brim of the pelvis in the (L) lateral abdomen.

Answer 22

Descending Colon

Question 23

Is the “S” shaped curved part of the distal colon extending from the descending colon to the rectum.

Answer 23

Sigmoid/Pelvic Colon

Question 24

Is the final part of the colon that extend from the sigmoid to the anus.

Answer 24

Rectum

Question 25

Is the lower 1 ½ inch of the rectum and ends at an opening, the “anus.”

Answer 25

Anal Canal

Question 26

The anal canal has two sphincters; a [. ] composed of skeletal muscle,
an [. ]composed of smooth muscle.

Answer 26

Voluntary External Anal Sphincter
Involuntary Internal Anal Sphincter

Question 27

In the large intestine, the longitudinal muscle layer of the muscularis external is reduced to three longitudinal muscle bands called the [. ] .

Answer 27

Tenia Coli

Question 28

Since these bands are shorter than the rest of the wall of the large intestine, they cause the wall to pucker into small pocket-like sacs called [. ] .

Answer 28

Haustra

Question 29

Are the puckered folds of the colon caused by the arrangement of the longitudinal muscle called the “Tenia Coli”.

Answer 29

Haustra