WINDSOR UNIVERSITY SCHOOL OF
MEDICINE
DEPARTMENT OF ANATOMY

• Origin
• Relations
• parts and branches
• Termination

• continuation of the axillary artery. It begins at the inferior border of the teres major and ends in the cubital fossa opposite the neck of the radius. (divides into the radial and ulnar arteries)

• COURSE: The brachial artery, relatively superficial and palpable throughout its course, lies anterior to the triceps and brachialis.
• At first it lies medial to the humerus where its pulsations are palpable. It then passes anterior to the medial supraepicondylar ridge and trochlea of the humerus. As it passes inferolaterally, the brachial artery accompanies the median nerve, which crosses anterior to the artery.

• The main named branches :deep artery of the arm and the superior and inferior ulnar collateral arteries.
Deep Artery of the Arm
• The deep artery of the arm (L. arteria profunda brachii) is the largest branch of the brachial artery and has the most superior origin. The deep artery accompanies the radial nerve along the radial groove as it passes posteriorly around the shaft of the humerus .
• The deep artery terminates by dividing into middle and radial collateral arteries that participate in the periarticular arterial anastomoses around the elbow.
Humeral Nutrient Artery
• The main humeral nutrient artery arises from the brachial artery around the middle of the arm and enters the nutrient canal on the anteromedial surface of the humerus

• The collateral arteries help form the periarticular arterial anastomoses of the elbow region. Other arteries involved are
• recurrent branches, from the radial, ulnar, and interosseous arteries, which run superiorly anterior and posterior to the elbow joint.
These arteries anastomose with descending articular branches of the deep artery of the arm and the ulnar collateral arteries.

• Veins of the Arm
• Two sets of veins of the arm, superficial and deep, anastomose freely with each other. The superficial veins are in the subcutaneous tissue, and the deep veins accompany the arteries. Both sets of veins have valves, but they are more numerous in the deep veins than in the superficial veins.