Surgical dissection of the hand, revealing the underlying tissue!! Pictured here are the tendons of the flexor digitorum superficialis as well as the flexor digitorum profundus, seen just underneath. The muscles attached to these tendons are actually found in the forearm; their main function is to flex the metacarpophalangeal as well as proximal and distal interphalangeal joints of the 2nd - 5th digits (aka, to bend the fingers, from index to pinky!) Photo credit @mdhealthtips