The frog is differentiated from the sole of the foot by two lines called commissures. Parts of the ground surface of the horse's foot. The condition of the frog generally is a good indication of the health of the foot. Without proper flexibility, expansion and ground contact, the frog cannot perform its function in complementing the circulation of blood and the absorption of shock throughout the foot. Internal foot structure To be able to provide proper foot care, first gain an understanding of some of the important internal parts of the foot and their functions.
Coffin bone provides the shape of the foot and the rigidity needed to bear weight.
Plantar cushion expands and contracts to absorb shock and pumps blood from the foot back toward the heart. Navicular bone serves as a fulcrum and bearing surface for the deep flexor tendon, which is responsible for extension of the foot as it progresses through a stride. Sensitive laminae serve as a means of attachment for the hoof wall and the coffin bone and also as the main area of blood circulation within the foot. Routine foot care Disease organisms concentrate where animals are confined, so cleanliness is important. Horses kept in a stall or small pen should have their feet picked or cleaned daily to reduce the risk of thrush.