Anastomoses

Question 1

Which anastomosis is used if the axillary artery is blocked?

Answer 1

–Anastomosis between the subclavian A (Suprascapular branch) and the Axillary A. (subscapular and the posterior circumflex humeral branches).

–If there’s narrowing due to atherosclerosis of the Axillary artery or ligation of the axillary A during surgery then this anastomosis acts as a bypass.

Question 2

Anterior and post. circumflex humeral arteries

Answer 2

-These are branches of the axillary artery
-They wrap around the surgical neck of the humerus and anastomose here
-Supply the shoulder joint

Question 3

Where does the posterior interosseous artery terminate? What artery does it branch from?

Answer 3

– Terminates by joining the anastomosis at the wrist
– Branches off from the common interosseous branch of the ulnar artery.

The ulnar artery gives rise to the common interosseous branch –> divides into anterior and posterior interosseous –> posterior intero. A. located in post. compartment of forearm –> runs btwn superficial and deep muscles –> accompanied by post. intero. branch of radial nerve –> terminates by joining anastomosis at wrist

** The ant. intero. A. travels anteriorly on the intero. memb and terminates by going posteriorly into the post. interos. artery by piercing the interos. memb.

Question 4

What anastomoses do the branches of the radial artery contribute to?

Question 5

What palmar arch does one of the branches of the radial A. contribute to? and which branch?

Question 6

palmar arches – superficial and deep

Question 7

Describe process of arterial blood sampling from the radial artery and its relationship with anastomoses of the palmar arches

Answer 7

Question 8

which arteries are involved in the blood supply thru the anastomosis at the elbow joint?

Question 9

Where do two of the branches of the profunda fem. anastomose

Answer 9

Branches:
med. circ. fem. A.
lat. circ. fem. A.

Around the uppermost shaft of the femur

Question 10

Main blood supply to hip joint?

Answer 10

Branches of profunda fem:
- Med. circ. fem. A and Lat. circ. fem. A.

Also the acetabular branch of the obturator artery

Question 11

Anastomosis arnd hip joint - which arteries are involved?

Answer 11

Medial and lateral circum. fem arteries
1st perforating branch of profunda femoris
Inferior gluteal artery

Question 12

Blood supply to elbow joint by?

Answer 12

By anastomosis formed between branches of Brachial, profunda brachii and radial and ulnar arteries