The cardiovascular system is one of the most important systems in your horse's body. This system is responsible for moving blood from one part of the body to another. It's essentially the engine that runs your horse's body and it's the foundation for all other systems.
The cardiovascular system is responsible for moving nutrients, wastes and gases to and from cells throughout the body.
The heart
The heart is more than just a place where your horse's love for you resides. It's a four-chamber muscle weighing about 10 pounds that pumps blood throughout the blood vessels in the body. The equine heart is particularly powerful, pumping about 38 litres of blood per minute - 10 times the amount of an average human heart.
Pulmonary circulation
Pulmonary circulation is the part within the cardiovascular system that sends blood to the lungs so that it can be enriched with oxygen before it goes to the rest of the body.