Pollicis artery
1.It appeared between the supinator and the abductor pollicis longus and descended in the posterior compartment of the forearm between the superficial and deep layers of muscles. Its terminal branches curved anastomosed with the dorsal branch of anterior interosseous artery 2.5±0.5cm above styloid process of ulna. This anastomosis branch had its high occurrences(96.7%) and 7-12 cutaneous branches arose from posterior interosseous artery to supply blood for the skin of dorsal forearm.

