The median antebrachial vein is a

superficial vein Superficial veins are veins that are close to the surface of the body, as opposed to deep veins, which are far from the surface. Superficial veins are not paired with an artery, unlike the deep veins, which are typically associated with an arte ...

of the (anterior)

forearm The forearm is the region of the upper limb between the elbow and the wrist. The term forearm is used in anatomy to distinguish it from the arm, a word which is most often used to describe the entire appendage of the upper limb, but which in anat ...

. It arises from - and drains - the

superficial palmar venous arch The superficial palmar arch is accompanied by a pair of venae comitantes Vena comitans is Latin for accompanying vein. It refers to a vein that is usually paired, with both veins lying on the sides of an artery. They are found in close proxim ...

, ascending superficially along the anterior forearm before terminating by draining into either the

basilic vein The basilic vein is a large superficial vein of the upper limb that helps drain parts of the hand and forearm. It originates on the medial (ulnar) side of the dorsal venous network of the hand and travels up the base of the forearm, where its co ...

and/or

median cubital vein In human anatomy, the median cubital vein (or median basilic vein) is a superficial vein of the upper limb. It lies in the cubital fossa superficial to the bicipital aponeurosis. It connects the cephalic vein and the basilic vein. It becomes promi ...

(it may bifurcate distal to the elbow and proceed to drain into both aforementioned veins).

References

Veins of the upper limb {{circulatory-stub