Chapter 6a - Liver

Question 1

Areas not covered by peritoneum

Answer 1

1. Bare area on post. surface limited by coronary lig. and right triangular lig.
2. Groove for IVC b/w caudate lobe and bare area
3. Fossa for gall bladder
4. Area of attachment of lesser omentum and fissure for lig. venosum

Question 2

Relations of anterior surface of liver

Answer 2

Xiphoid process
AAW
Diaphragm on each side
Falciform lig. is attached to this surface

Question 3

Relations of posterior surface of liver

Answer 3

1. Diaphragm, Right adrenal gland
2. IVC
3. Caudate lobe: Crura of diaphragm above aortic opening, Right inf. phrenic A, Coeliac trunk
4. Fissure for lig. venosum
5. Oesophageal impression

Question 4

Relations of superior surface of liver

Answer 4

Shows cardiac impression

Diaphragm

Question 5

Relations of inferior surface of liver

Answer 5

1. Gastric impression on left lobe
2. Left lobe has raised area that comes into contact with greater omentum: tuber omentale
3. Quadrate lobe: lesser omentum, pylorus, first part of duodenum
4. Fossa of gall bladder
5. Colic impression, renal impression, duodenal impression

Question 6

Relations of right surface of liver

Answer 6

Upper 1/3: Diaphragm, pleura, lungs
Middle 1/3: Diaphragm, costodiaphragmatic recess of lung
Lower 1/3: Only diaphragm

Question 7

Arterial supply of liver

Answer 7

20% - hepatic A
80% - portal V
Both divide into right and left branches, then into segmental vessels and then into interlobular vessels

Question 8

Venous drainage of liver

Answer 8

Interlobular V to Sublobular V to IVC

Question 9

Hepatic segments

Answer 9

1. Right ant: 5,8
2. Right post: 6,7
3. Left lateral: 2,3
4. Left medial: 1,4