Question

While treating the patient (in the preceding question) the doctor observes, "You were fortunate that the panel did not sever the large artery running down the medial side of your arm." The large artery referred to lies in the neurovascular compartment and supplies most everything below the elbow; this artery is the:

A. axillary
B. brachial
C. deep brachial
D. radial
E. ulnar

Answer 1

The brachial (option B) artery runs down the medial side of the arm, supplying blood below the elbow, and continuing from the axillary artery, it bifurcates into the radial and ulnar arteries at the elbow region.

Step-by-step explanation:

The large artery referred to by the doctor that runs down the medial side of the arm, lying in the neurovascular compartment, and supplying most everything below the elbow is the brachial artery. The brachial artery is a continuation of the axillary artery into the upper arm or brachium. This artery supplies blood to a significant portion of the brachial region.



It progresses down the arm, giving off several smaller branches that provide blood to the posterior surface of the arm around the region of the elbow. As the brachial artery approaches the coronoid fossa near the elbow, it bifurcates into two other arteries—the radial and ulnar arteries, which continue into the forearm (antebrachium), and play a vital role in the blood supply to the lower arm, carpal region, and hand.