The is a major deep vein of the upper arm . It plays a vital role in the circulatory system by returning deoxygenated blood from the hand, forearm, and arm back toward the heart. 📍 Location and Course
: It provides primary drainage for the deep structures of the arm, such as the humerus bone and upper arm muscles.
: It is formed at the elbow by the merging of the ulnar and radial veins. brachial vein
: It travels up the inner arm and joins with the basilic vein to form the axillary vein at the lower border of the teres major muscle. ⚙️ Function
: Due to its extremely close proximity to the median nerve and the brachial artery, blind puncture in this area carries an increased risk of nerve injury and accidental arterial puncture. The is a major deep vein of the upper arm
: Pulsations from the adjacent brachial artery help compress the vein, pushing blood upward toward the chest. 🩺 Clinical Significance
: Because it is a deep vein, it is less visible than superficial veins (like the cephalic or basilic). However, it is frequently used by clinicians for inserting Peripherally Inserted Central Catheters (PICCs) or for creating specialized hemodialysis fistulas. : It is formed at the elbow by
: It typically consists of two paired veins that run parallel to and sandwich the brachial artery.