Blood and Nerve Supply of the Hand

What does the brachial artery split into at the neck of the radius?

radial artery and ulnar artery

What artery are you feeling when you take a wrist pulse?

radial

Branches of the radial artery from proximal to distal

radial recurrent (back of elbow)

deep palmar arch

Branches of the deep palmar arch

princeps pollicis, radialis indicis, and dorsal carpal arch

Branches of the ulnar artery

anterior and posterior ulnar recurrent

common interosseous (to posterior and anterior interosseuous)

superficial palmar arch

Branches off the superficial palmar arch

deep palmar branch

palmar digital artery (medial side of little finger)

Common digital arteries (splits into proper digital arteries → arteries that go up both sides of fingers)

What does the ulnar artery supply blood to in the hand?

fingers 3-5 and medial side of number #2 and palm

What does the radial artery supply blood to in the hand?

thumb, back of hand, and lateral side of index finger

What does the ulnar nerve do in the hand? How does it get there?

splits into a motor and cutaneous branch (superficial palm)

guyon’s canal

What does the radial nerve do in the hand? How does it get there?

cutaneous branch after going through the snuff box

What does the median nerve do in the hand? How does it get there?

motor and cutaneous branches

carpal tunnel