Median cubital vein
In human anatomy, the median cubital vein is a superficial vein of the upper limb. It is very clinically relevant as it is routinely used for venipuncture and as a site for an intravenous cannula. It connects the basilic and cephalic vein and becomes prominent when pressure is applied. It lies in the cubital fossa superficial to the bicipital aponeurosis.
There exists a fair amount of variation of the median cubital vein. More commonly the vein forms an H-pattern with the cephalic and basilic veins making up the sides. Other forms include an M-pattern, where the vein branches to the cephalic and basilic veins.
