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subclavian artery
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Silhouette diagram of the human body highlighting the heart and major blood vessels, with labeled arteries in red and veins in blue to show the structure of the cardiovascular system. Diagram of the human circulatory system showing major arteries in red and veins in blue, with labeled pathways for arterial supply and venous drainage to organs including the heart, lungs, liver, kidneys, intestines, and lower limbs.
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subclavian artery

anatomy
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Silhouette diagram of the human body highlighting the heart and major blood vessels, with labeled arteries in red and veins in blue to show the structure of the cardiovascular system.
human circulatory system Human circulatory system.

The subclavian artery is the proximal part of the main artery supplying the arm or forelimb. Arteries, in general, are part of the vascular system, which is established early in embryonic development and functions as a closed system of tubes transporting blood to and from the heart. Arteries carry blood under high pressure, propelled by the heart's pumping action, and possess strong, elastic walls to ensure efficient blood flow.12

The subclavian arteries originate from the arch of the aorta. Specifically, the left subclavian artery branches directly from the aorta, while the right subclavian artery arises from the innominate artery, which itself branches from the aorta. These arteries then become known as the axillary arteries as they reach the border of the first rib, continuing down the arm.2

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2 Britannica Sources
  1. subclavian artery
  2. human cardiovascular system - The aorta and its principal branches

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