Lab 3 - Image 2

Palmar surface of equine digit with and without sesamoid bones. 1, P1 = long pastern bone; 2, P2 = short pastern bone; 3, sole surface of P3 (coffin bone); 4, metacarpal 3 = cannon bone; 5, proximal sesamoid bone flexor tendon surface; 6, flexor surface of distal sesamoid (navicular) bone ; 7, solar foramen; 8, sagittal ridge of cannon bone; 9, sagittal groove of P1; 10, triangular area where middle distal sesamoidean ligaments attach; 11, partial ossification of the cartilage of P3; 12, tip of medial splint bone (larger than tip of Mc4).