What anatomical region does the brachial artery supply?

The brachial artery is primarily responsible for supplying blood to the arm, specifically the muscles and tissues of the upper limb. As a continuation of the axillary artery, it runs down the upper arm and branches into smaller arteries that serve the forearm and hand. Understanding this anatomical relationship is crucial for EMTs when assessing blood supply or responding to injuries in the upper extremities.

In contrast, the other regions mentioned are supplied by different arteries. The leg is supplied by arteries such as the femoral and popliteal arteries, the head has its blood supply from the carotid and vertebral arteries, and the abdomen receives blood from branches of the abdominal aorta. Recognizing these distinctions helps EMTs and medical professionals identify potential issues and guide treatment effectively.