Where does the brachial artery begin and terminate?

The brachial artery is a key blood vessel that supplies the arm. It begins at the lower border of the teres major muscle, marking the continuation from the axillary artery after it passes through the axilla. The termination point of the brachial artery occurs at the cubital fossa, where it divides into the radial and ulnar arteries that supply blood to the forearm and hand.

Understanding the correct anatomical landmarks is crucial for identifying the beginning and end of just such major arteries. The teres major muscle serves as an important reference point for the brachial artery's transition from the axillary region into the arm, and the cubital fossa is a well-defined space at the elbow where significant vascular structures can be found. This anatomical knowledge is essential not only for medical studies but also for practical applications, such as providing medical care or performing procedures that involve vascular access.

Other options incorrectly specify different anatomical landmarks, which do not accurately reflect the starting and ending points of the brachial artery. For instance, the wrist is too distal and doesn't represent the termination of the brachial artery. Identifying the precise anatomical locations is vital for understanding the arterial supply of the arm and its relevance in various medical contexts.