The+Circulatory+System

1. The Heart
 * The Circulatory System consists of 5 main parts..**



2. Arteries

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3. Arterioles 4. Capillaries 5. Veins

Functions
The circulatory system control the flow of blood around the body. When blood circulates it leaves the heart and goes into the aorta. The blood leaving the aorta contains oxygen, which is vital for the cells in the brain and body to do their work. The blood travels throughout the body in it's system of arteries into arterioles. As it reaches the lungs the carbon dioxide, a waste product, is removed and replaced with oxygen that we inhale through our lungs.
 * The Circulatory System carries oxygen from lungs to tissues and carbon dioxide from tissues to lungs. Oxygen is needed for proper functioning of cells.
 * Prevents over bleeding by forming blood clot plateletes.
 * Helps in fighting infections.
 * Helps to maintain the pH of blood.
 * Heat exchange through the body surface.

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The circulatory system brings nutrients and oxygen to the digestive system. The circulatory system takes waste away from the digestive system. The digestive system carries the nutrients through the cells. Together they make a great team :D=====

The respiratory system gets oxygen into the circulatory system, that takes the oxygen through the blood stream, to other parts of the body.
 * Circulatory and Respiratory Systems in relation to each other..**

Exploring The System
-Arteries
 * Circulatory- **
 * Platelets are very tiny vital blood components lacking nuclei and are one fourth of the size of red blood cells.
 * There are three types of vessels..

-Veins -Capillaries
 * Tricuspid valve transfers the blood to the right ventricle. When the right ventricle contracts, the blood is forced past the pulmonary semilunar valve and into the pulmonary trunk which is an artery.