Equine anatomy encompasses the gross and microscopic anatomy of horses, ponies and other equids, including donkeys, mules and zebras. Horse's limbs – tendons, joints, and hooves are most prone to injuries and ailments, which is why we will try to say the most about them. Saliva acts as a lubricant to provide easier passage through the esophagus and buffers acid in the stomach. It supplies nutrients to allow growth of new horn tissue, assists with damping impact shock and helps to regulate hoof temperature. It also contains many nerves which enable the horse to feel what it is standing on and be aware of where its feet are in relation to the rest of its body (proprioception).

The horse's small intestine is 15 to 21 m (50 to 70 ft) long and holds 38 to 45 L (10 to 12 US gal). When weight is removed from the hoof, the release of pressure pulls blood back down into the foot again. The dermis is a connective tissue layer consisting of blood vessels, nerve endings, hair follicles, glands, collagen fibres, and elastic fibres.The arachnoid has two parts; the layer which contacts the dura mater and the trabeculae system that connects it to the pia mater.

The base is the dorsal part of the heart, and the major blood vessels enter and leave from this section. A horse’s limbs are highly adapted for fast running, and the horse can make long strides via the straightening and lengthening of its limbs.On the other side, saddle horses with small heads (in regards to the rest of their bodies), such as Arabs, are perfect for long or quick runs (rides, races). The digestion of starch can often be incomplete due to the starch present in cereal grains being protected by the grains seed coat. The basal layer continuously forms new cells, and these cells replace those cells which are sloughed off due to friction and physical damages in the outermost layers. Ruini then examines a series of “affections” of the brain: frenzy, rage or fury, and insanity, leading to convulsions and paralysis.