ANEQ 102 Study Guide - Final Guide: Osteology, Weight-Bearing, Sesamoid Bone
Document Summary
The hoof is the foundation of the horse. The foot is the most common area of the forelimb lameness. Osteology: coffin bone = 3rd phalanx, short pastern bone = 2nd phalanx, navicular bone = distal sesamoid. Joints: coffin joint, pastern joint, fetlock joint. Blood vessels: medial (inside) & lateral (outside, digital arteries, digital veins. Superficial external structures: hoof wall, coronary band, frog, sole, white line, bars. Concave (mimics the solar surface of the distal phalanx) Concavity shows the general surface of the sole is not meant to bear weight. At the heels, the wall is inflected at an acute angle; runs forward and inwards. Increases the articular surface of the dip joint. Maintains a constant angle of insertion for the ddft. Couples with the deep digital flexor tendon, makes the joint elastic and yielding, thus counteracting shock. The hoof wall is made up of parallel fibers. The coronet (coronary band) is the source of growth for the hood wall.
