Introduction to the Alimentary System and Anatomy Overview 1

Question 1

What is the anterior wall of the abdominal cavity?

Answer 1

Abdominal wall muscles

Question 2

What is the inferior wall of the abdominal cavity?

Answer 2

Pelvic floor muscles

Question 3

What is the posterior wall of the abdominal cavity?

Answer 3

Lumbar vertebral column

Question 4

What is the superior wall of the abdominal cavity?

Answer 4

Diaphragm

Question 5

What is the peritoneum?

Answer 5

A thin (singe-cell thick) serous layer

Question 6

What does the peritoneum do?

Answer 6

Lines the abdominopelvic cavity and surrounds the organs inside

Question 7

What are the 2 layers of the peritoneum?

Answer 7

Visceral and parietal

Question 8

What does intraperitoneal mean? + movement

Answer 8

Connected to the wall by a double layer of peritoneum - not directly connected to the wall
Mobile due to layers of peritoneum

Question 9

What does retroperitoneal mean? + movement

Answer 9

Directly adhered to muscles on the body wall

No movement

Question 10

What are omenta?

Answer 10

Double folds of peritoneum passing from the stomach and duodenum to other organs or body wall

Question 11

What are ligaments?

Answer 11

Varied double layers of peritoneum which span between organs or organs to body

Question 12

What is a mesentery?

Answer 12

A double fold of peritoneal tissue that suspends the small intestine and large intestine from the posterior abdominal wall

Question 13

What do mesentaries and omenta contain?

Answer 13

Arterial branches which supply peritonised organs - venous, lymphatic and nerve

Question 14

What is in the peritoneal cavity?

Answer 14

Peritoneal fluid

Question 15

What divides the greater and lesser sac?

Answer 15

Epiploic/omental foramen

Question 16

Where is the lesser sac located?

Answer 16

Posterior to the stomach