Horse air conditioning system

Canadian scientists say that the heads of horses have a self-cooling system when the temperature rises during the rapid enemy. Sports animals such as horses should keep their head temperature below forty degrees Celsius during violent training, otherwise they will suffer brain damage.

The way horses performed this function remained a mystery. Horses seemed to lack the usual thermal control systems in other animals, and now Keith Baptiste and his colleagues at the University of Saskatchewan in Canada believe they found the answer. They discovered that the carotid arteries that carry blood to the brain are surrounded by two sacs containing air (about 300 to 500 milligrams of air) from the respiratory tract. When the horse strain and sweat, the heat in the blood turns into these airbags.

These airbags were found in other horse-like animals such as zebras and monkeys, but also in some species of bats, even in American forest mice.Airbags were discovered in horse heads in 1756 and since then several theories have tried to determine their functions.

According to Keith Baptiste, some in the 18th century believed that these bags help horses to swim by helping them to carry their heads above water. With this function, these bags should have a useful function because they pose a risk to the health of horses. These cysts are susceptible to bacteria and parasites that may be fatal, so they are present for some purpose.

The team used sensors to measure temperature changes at three different locations when blood moves in the arteries, then through the air sacs and then into the brain. These sensors were placed in four horses and then presented to a series of different exercises. This experiment showed that the temperature decreased after the passage of blood in the air sacs. Keith Baptiste says the discovery will force many to change their ideas about the science of horse legislation