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An adult horse has an average rate of respiration at rest of 12 to 24 breaths per minute. [3] Young foals have higher resting respiratory rates than adult horses, usually 36 to 40 breaths per minute. [3] Heat and humidity can raise the respiration rate considerably, especially if the horse has a dark coat and is in the sun.
Horses have a relatively small stomach for their size, and this limits the amount of feed a horse can take in at one time. The average sized horse (360 to 540 kg [800 to 1,200 lb]) has a stomach with a capacity of around 19 L (5 US gal), and works best when it contains about 7.6 L (2 US gal).
The flehmen response (/ ˈ f l eɪ m ən /; from German flehmen, to bare the upper teeth, and Upper Saxon German flemmen, to look spiteful), also called the flehmen position, flehmen reaction, flehmen grimace, flehming, or flehmening, is a behavior in which an animal curls back its upper lip exposing its front teeth, inhales with the nostrils usually closed, and then often holds this position ...
Older horses or those with health conditions may have a harder time regulating their body temperature. "Geriatric horses, in particular, might need extra calories or a blanket to help them through ...
Invertebrates also have a pharynx. Invertebrates with a pharynx include the tardigrades, [12] annelids and arthropods, [13] and the priapulids (which have an eversible pharynx). [14] The "pharynx" of the nematode worm is a muscular food pump in the head, triangular in cross-section, that grinds food and transports it directly to the intestines ...
Skeleton of a horse. The skeletal system of the horse has three major functions in the body. It protects vital organs, provides framework, and supports soft parts of the body. Horses typically have 205 bones. The pelvic limb typically contains 19 bones, while the thoracic limb contains 20 bones.
The cause of wry nose in horses is unknown; it may have a genetic cause, or be due to malpositioning in the uterus. [1] A wry nose may cause difficulty during foaling (dystocia). [3] A foal with wry nose may have poor alignment (malocclusion) of the teeth, [2] although foals can usually still nurse and in most cases are bright and active. [4]
Equine nasal cysts are abnormal fluid filled sacs which occur inside the nasal sinuses of horses. The cysts are lined with epithelium, and usually occur in the ventral conchae or maxillary sinuses, [1] most commonly in horses less than one year old. [2] Surgical removal of the cyst has a good prognosis for the horse.