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Scapula (shoulder blade): flat bone with a large area of cartilage that partially forms the withers. The shoulder length and angle is very important to horsemen when evaluating conformation. Humerus: lies between the scapula and the radius, making an angle of about 55 degrees down and back. (Misspelled in the picture as "Humercus")
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 ...
Skeleton of the lower forelimb. Each forelimb of the horse runs from the scapula or shoulder blade to the third phalanx (coffin or pedal) bones. In between are the humerus (arm), radius (forearm), elbow joint, ulna (elbow), carpus (knee) bones and joint, large metacarpal (cannon), small metacarpal (splint), sesamoid, fetlock joint, first phalanx (long pastern), pastern joint, second phalanx ...
Pulls the forelimb forward, raises scapula in collection. Cervicalis ascendens: originates at the transverse process of the final 3-4 cervical vertebrae, inserts into the first rib. Cutaneous coli: originates from the cariniform cartilage and inserts into the cervical fascia. Lies on the ventral parts of the neck (near the jugular groove).
The horse has a long shoulder blade to which attached muscles effectively contract and so increase the extension and efficiency of stride. It distributes muscular attachments of the shoulder to the body over a large area, decreasing jar and preventing stiffening of the shoulders with impact.
The tarsal joint of the equine hind leg, located midway between the horse's body and the ground. [8]: 244 Anatomically corresponds to a human's ankle and heel, but in horses is located much farther from the ground. Prehistoric cave painting of a horse from the Lascaux caves horse 1. Wild Horse: Equus ferus. a.
In the horse, 84%, 15%, and 3% of the total triceps muscle weight correspond to the long, lateral, and medial heads, respectively. [11] Many mammals, such as dogs, cattle, and pigs, have a fourth head, the accessory head. It lies between the lateral and medial heads. [3]
While this slightly closes the angle between the clavicle and the scapula, it also widens the shoulder. [4]: 40 The scapula can be elevated and depressed from the neutral position to a total range of 10 to 12 centimetres (3.9 to 4.7 in); at its most elevated position the scapula is always tilted so that the glenoid cavity is facing superiorly.