GIS02 Abdominal cavity. Innervation, blood supply and lymphatic drainage of GI tract

Question 1

Which parts of the gut tube are suspended by dorsal mesentery only?

Answer 1

Midgut
Hindgut

Question 2

What is the deepest point of the peritoneal cavity in females?

Answer 2

Rectouterine (Douglas) pouch

Question 3

Name three ligaments that constitute the lesser omentum.

Answer 3

1. Hepatoduodenal lig.
2. Hepatogastric lig.
3. Hepato-oesophageal lig.

Question 4

Name the opening that connects the lesser and greater sacs.

Answer 4

Epiploic foramen

Question 5

During embryological development, how many layers of peritoneum contribute to greater omentum formation?

Answer 5

4

Question 6

Do retroperitoneal organs have a mesentery?

Answer 6

No

Question 7

Explain what is meant by primarily and secondarily extraperitoneal.

Answer 7

1. Primarily extraperitoneal
   - extraperitoneal from the outset
   - can be retroperitoneal OR infra/subperitoneal
2. Secondarily retroperitoneal
   - became retroperitoneal during embryonic development
   - covered by peritoneum anteriorly