Ch 65: Colon

Question 1

The ___surfaces of the ascending and descending colon are
in direct contact with the retroperitoneum, whereas the ____surface is draped
with peritoneum.

Answer 1

The posterior and lateral surfaces of the ascending and descending colon are
in direct contact with the retroperitoneum, whereas the anterior surface is draped
with peritoneum.

Question 2

The rectum, approximately ____ in length, extends from the
rectosigmoid junction to the puborectalis ring.

Answer 2

The rectum, approximately 12 to 15 cm in length, extends from the
rectosigmoid junction to the puborectalis ring.

Question 3

The upper ___ of the rectum
is draped with peritoneum anteriorly and on both sides. As the ____
of the rectum moves deeper into the pelvis, only the anterior surface is covered
with peritoneum, which forms the posterior border of the rectouterine pouch or
rectovesical space.

Answer 3

The upper one-third of the rectum
is draped with peritoneum anteriorly and on both sides. As the middle one-third
of the rectum moves deeper into the pelvis, only the anterior surface is covered
with peritoneum, which forms the posterior border of the rectouterine pouch or
rectovesical space.

Question 4

The
jejunum is arbitrarily defi ned as the proximal ____of the
mesenteric intestine, whereas the ileum is the distal ____

Answer 4

The
jejunum is arbitrarily defi ned as the proximal two-fi fths of the
mesenteric intestine, whereas the ileum is the distal threefi fths

Question 5

The sigmoid colon penetrates the peritoneum at the level of vertebrae____to
continue as the extraperitoneal rectum.

Answer 5

The sigmoid colon penetrates the peritoneum at the level of vertebrae S-2 to S-4 to
continue as the extraperitoneal rectum.

Question 6

SMA supplies:

Answer 6

pancreas, duodenum, cecum, appendix, ascending colon, transverse colon, small intestines