If your ulnar artery was completely blocked as it passed into the wrist, would you lose your primary blood supply to opponens digiti minimi? Explain your answer.
No for various reasons. First, primary is from branches of the deep palmar arch, which is the continuation of the radial artery. Also, the arches create continuous blood flow between radial and ulnar in the deep and superficial palm, so blockage in any one artery will not result in full blood loss.