8. Arterial supply of Upper Limb: Overview

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8. Arterial supply of Upper Limb: Overview
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The arterial supply of the upper limb is vital for ensuring that the muscles, skin, and bones of the arm, forearm, and hand receive an adequate supply of oxygenated blood for their functions. The primary artery responsible for the blood supply to the upper limb is the subclavian artery ????, which branches off from the aorta on the left side and from the brachiocephalic trunk on the right side. As the subclavian artery passes beneath the clavicle, it becomes the axillary artery ????.

The axillary artery supplies blood to the shoulder and upper arm and divides into several branches, including the anterior and posterior circumflex humeral arteries, which supply the shoulder joint and surrounding muscles ????️‍♀️. The axillary artery continues down the arm as the brachial artery, which is the main artery in the upper limb ????.

The brachial artery runs along the arm and bifurcates at the cubital fossa into the radial and ulnar arteries ????‍♂️, which supply the forearm and hand, with the radial artery running laterally and the ulnar artery medially. The radial artery is crucial for the supply of the lateral aspect of the forearm and hand, while the ulnar artery provides blood to the medial forearm and hand ????. Additionally, the deep brachial artery supplies blood to the muscles of the arm, and smaller branches like the recurrent arteries help to ensure collateral circulation to the elbow and hand ????.
The arterial system of the upper limb is not only vital for blood flow but also has clinical significance in procedures such as pulse palpation, venipuncture, and surgical interventions like bypass surgeries and artery ligations ????⚙️. Understanding the complex arterial network of the upper limb is essential for medical professionals to manage vascular conditions and injuries ????.

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Category
Cardiology
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