Abdominal Cavity and Peritoneal Cavity

Question 1

Abdominal cavity

Answer 1

formed by the muscles of the abdominal wall, the ribs, and the diaphragm; it is lined by the peritoneum, which encloses the peritoneal cavity

Question 2

Peritoneal cavity

Answer 2

closed space, lined by a serous membrane; derived from the somatic and splanchnic mesodermal layers lining the embryonic coelom; no organs found here

Question 3

Parietal peritoneum

Answer 3

layer that lines the body wall and has to incised to open the peritoneal cavity

Question 4

Visceral peritoneum

Answer 4

surrounds all the organs of the abdominal cavity

Question 5

Transversalis fascia

Answer 5

reinforces the parietal peritoneum and attaches it to the abdominal muscles and diaphragm

Question 6

Falciform ligament

Answer 6

fold of the peritoneum that passes from the umbilicus to the diaphragm; also attached to the liver between the left and medial quadrate lobes

Question 7

Round ligament of the liver

Answer 7

found in young animals; free border of the falciform ligament

Question 8

Median ligament of the bladder

Answer 8

fold of peritoneum caudal to the umbilicus

Question 9

Vaginal ring

Answer 9

opening formed by the parietal peritoneum as it leaves the abdomen and enters the inguinal canal to form the vaginal process or the tunic

Question 10

Deep inguinal ring

Answer 10

formed by the reflection of the transversalis fascia around the vaginal ring; part of the inguinal canal

Question 11

Inguinal canal

Answer 11

very short natural passageway through the abdominal wall
structures that pass caudoventrally through: male- vaginal tunic and spermatic cord; female- vaginal process and round ligament of the uterus; in both sexes the external pudendal vessels and genitofemoral nerve travers the canal