Anatom3DLeft superior ulnar collateral artery
Arteria collateralis ulnaris superior sinistra · Levá horní loketní kolaterální tepna
Heart & arteries
Looks like
A thin branch of the brachial artery at mid-arm that runs down with the ulnar nerve to behind the inner elbow bump.
What it does
Joins the vessels around the elbow, so blood can bypass a blocked brachial artery, and feeds the ulnar nerve.
Keeping it well
Matters to surgeons moving the ulnar nerve at the elbow (cubital tunnel surgery), who try to keep it with the nerve.