charlottes+and+jaimees+circulatory+system+page





= **The circulatory system is made up of the vessels and the muscles that help and control the flow of the blood around the body.** = = **This process is called circulation. The main parts of the system are the heart, arteries, capillaries and veins.** = = **As blood begins to circulate, it leaves the heart from the left ventricle and goes into the aorta.** = = **The aorta is the largest artery in the body.** = = **The blood leaving the aorta is full of oxygen.** = = **This is important for the cells in the brain and the body to do their work.** = = **The oxygen rich blood travels throughout the body in its system of arteries into the smallest arterioles.** = = **On its way back to the heart, the blood travels through a system of veins.** = = **As it reaches the lungs, the carbon dioxide (a waste product) is removed from the blood and replace with fresh oxygen that we have inhaled through the lungs** = =** Your heart pumps 60-100 beats per minute **=

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