Blood supply of CBD

Q) Supraduodenal  CBD is supplied by all except (AIIMS NOV 18)
a Cystic art
b RHA
c LHA
d Anterosuperior pancreaticoduodenal artery

Ans c

The blood supply to the right and left hepatic ducts and upper portion of the CHD is from the CA and the right and left hepatic arteries.

The supraduodenal bile duct is supplied by arterial branches from the right hepatic, cystic, posterior superior pancreaticoduodenal, and retroduodenal arteries.

arteries to the supraduodenal bile duct run parallel to the duct at the 3 and 9 o’clock positions.

Approximately 60% of the blood supply to the supraduodenal bile duct originates
inferiorly from the pancreaticoduodenal and retroduodenal arteries

whereas 38% of the blood supply originates superiorly from the right hepatic artery and CD artery

Shackelford-1253

Bible of GI Surgery for AIIMS. Get your own Kindle Edition 

 

Esophagus Length

Q) Length of Esophagus is 

 A. 20 cm
B. 25 cm
C. 30-35cm
D. 40cm

Length of esophagus is important in various resection surgeries as well as endoscopy


Answer

 b 25 cm

The length of esophagus  is anatomically defined as the distance between the cricoid cartilage and the gastric orifice. It ranges in adults from 22 to 28 cm (24 ± 5 SD),  last 3 to 6 cm of which are located in the abdomen.

The shortest distance between the cricoid cartilage and the celiac axis is the orthotopic route in the posterior mediastinum, being 30 cm. The retrosternal (32 cm) and the subcutaneous route (34 cm) proved to be longer

Deviations to the left 

Esophagus through out its length deviates to the left in superior mediastinum and lower posterior mediastinum.

Constrictions of esophagus

Cervical narrowest at c5/6

Thoracic T4-5

Abdominal

 

Ref Shackelford page 10

Blood supply duodenum

Q) Supraduodenal artery of Wilkie is a branch of

a) GDA

b) Rt gastroepiploic

c) Rt gastric

d) Sup Pancreaticoduodenal

Ans For Premium 

Discuss blood supply of 1st part of duodenum, and course of all arteries mentioned in choices.

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