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Points of a horse. Equine anatomy encompasses the gross and microscopic anatomy of horses, ponies and other equids, including donkeys, mules and zebras.While all anatomical features of equids are described in the same terms as for other animals by the International Committee on Veterinary Gross Anatomical Nomenclature in the book Nomina Anatomica Veterinaria, there are many horse-specific ...
It forms the "forearm" of the horse along with the ulna. Ulna: caudal to the radius, it is fused to that bone in an adult horse. Shoulder joint (scapulohumeral joint): usually has an angle of 120-130 degrees when the horse is standing, which can extended to 145 degrees, and flexed to 80 degrees (such as when the horse is jumping an obstacle).
The limbs of the horse are structures made of dozens of bones, joints, muscles, tendons, and ligaments that support the weight of the equine body. They include two apparatuses: the suspensory apparatus, which carries much of the weight, prevents overextension of the joint and absorbs shock, and the stay apparatus , which locks major joints in ...
It is the major extensor tendon of the leg. However, unlike the flexor tendons, a horse with a damaged or non-functional "extensor unit" (i.e. tendon and musculature) is not lame, but rapidly learns to compensate by "flicking" the lower limb using the carpal or tarsal extensor units.
The domestic horse is almost alone among extant equines in having chestnuts on the hind legs. [5] Chestnuts are absent from the hind legs of asses and zebras. [6] The majority of domestic horses have chestnuts on all four legs, as does the Przewalski's horse, [6] but a few horse breeds are reported to lack chestnuts on the hind legs. [6] These ...
The average adult horse has a 3.6-kilogram (7.9 lb) heart, although it can be more than twice this size. The heart grows until the horse is 4 years of age, although it can increase slightly in size as a response to conditioning. [1] Heart size does not necessarily correlate to the size of the horse. [2]
The coffin bone is connected to the inner wall of the horse hoof by a structure called the laminar layer. The insensitive laminae coming in from the hoof wall connects to the sensitive laminae layer, containing the blood supply and nerves, which is attached to the coffin bone. [ 1 ]
Ideally, the length of a horse's back from the peak of the withers to the point of the hip should be 1/3 of the horse's overall body length (from the point of the shoulder to the point of the buttock, excluding head and neck). A horse's back is called "long" if the length exceeds 1/3 and "short" if less than 1/3.