What is the upper arm lateral vein?

The upper arm lateral vein, often referred to as the lateral antebrachial vein, is a superficial vein located in the upper arm and forearm. It runs along the lateral side (outer side) of the arm and is responsible for draining blood from the forearm and hand. This vein is significant for venous access and is commonly used in medical procedures, such as blood draws or IV placements. It typically connects with deeper veins, contributing to the overall venous return to the heart.