Vascular Supply of Upper Limb
(I) Arterial Supply (Figure-1-7):
(A) Subclavian Artery
o On Right arises from brachiocephalic trunk. o On Left from arch of aorta. o Extends from arch of aorta to lateral border of first rib.
Branches:
o Internal thoracic artery o Vertebral artery o Thyrocervical trunk : (a) Suprascapular artery forms anastomosis around scapula (b) Transverse cervical (c) Inferior thyroid
(B) . axillary artery : at mid calvical and a lateral border of first rib the subclavian artery continue as axillary artery and ends at the inferior border of the teres major then continue as brachial artery
Course : by pectoralis minor muscle the axillary artery divided to three part
First …show more content…
Surface marking:
With the arm abducted to a right angle, is along a line from the middle of the clavicle to midpoint between the humeral epiconyles (Chummy S. Sinnatamby, 2006).
Branches:
Profunda brachii artery:
A large branch from the posteriomedial aspect of the brachial artery, distal to teres major. It follows the radial nerve closely in the radial groove, finally divides into terminal radial and middle collateral branches at the cubital fossa.
Nutrient artery of the humerus.
Superior and Inferior ulnar collaterals artery:
They take part in the cubital anastmosis.
Terminal branches:
Radial and Ulnar arteries. (William PL et al., …show more content…
It begins about 1 cm distal to the head of the elbow (level of the neck of the radius), then descends along the lateral side of the forearm to the wrist (William PL et al., 2005).
Distally in the forearm the artery lies superficially between brachioradialis and flexor carpiradialis, where it is palpated at the wrist.
Distal to the radial pulse, the artery gives a branch to assist in forming the superficial palmar arch.
It then passes deep to the tendons of abductor pollicis longus and extensor pollicis brevis to the anatomical snuff-box (in which it can be felt), pierces the first dorsal interosseous muscle and adductor pollicis, between the first and second metacarpals, and goes on to form the deep palmar arch with the deep branch of the ulnar artery (Harold Ellis, 2010).
Surface markings: It is along a line, slightly convex laterally, from a point medial to the triceps tendon in the cubital fossa to a point medial to the styloid process of the radius (Chummy S. Sinnatamby, 2006).
Branches:
1- Muscular branches: are distributed to the neighboring muscles on the radial side of the