Circulatory+System




 * Circulatory System **With each heartbeat, blood is sent throughout our bodies, carrying oxygen and nutrients to every cell.

The circulatory system is mostly made up of the heart, vain, and arteries. Our Circulatory system is actually made up of two parts, one of them is The Pulmonary and it's a short circulation from the heart to the lungs and over and over again. Now the Systemic system of the circulatory system sends blood through to the whole body over and over again until we die. The heart, the heart is the most important organ on the circulatory system. It is basically a pump that pushes blood through your own body. The heart usually beat 60 to 100 per minute but in different cases can go much faster if necessary like when we are frightened (and/or) working out. Your body lets your heart know when to pump more or less blood through your body. The heart has four chambers that are enclosed by thick, muscular walls. Our heart is located between, mostly to the left, or our lungs. The bottom part of the heart is separated into two chambers called the right and left ventricles, which pump blood out of the heart. A wall called the interventricular septum divides the ventricles. The upper part of the heart is made up of the other two chambers of the heart, the right and left atria. The right and left atria receive the blood entering the heart. A wall called the interatrial septum divides the right and left atria, which are separated from the ventricles by the atrioventricular valves. The tricuspid valve separates the right atrium from the right ventricle, and the mitral valve separates the left atrium and the left ventricle. Two other cardiac vales separate the ventricles and the big blood vessels that carry blood leaving the heart. Arteries carry the blood away from the heart.They are the widest blood vessels, with muscular wall that contract to keep the blood moving away from the heart and through the body, and that's basically the whole system.

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