circulatoryics19DelaAl

The Cardiovascular System also called Circulatory System is very important because it is an organ system that transports needed materials to cells and removes waste from cells. The circulatory system delivers materials, removes waste, regulates body temperature, and fights diseases. The circulatory includes the Heart, Atrium, Ventricle, Valve, Artery, Aorta, Capillary, and Vein. The Heart is a muscular organ that pumps blood throughout an organisms body. It is very important, without it you wouldn't be able to breathe oxygen. The Atrium is an upper chamber of the heart that receives blood. The Ventricle is similar but different do the Atrium. It pumps blood out of the lungs and the body, and it is the lower chamber of the heart. A Valve is a flap of the tissue in the heart that prevents blood from flowing backwards. Artery is a blood vessel that carries blood away from the heart. Aorta is the largest artery in the body which is very important. It receives blood from the left ventricle. The Capillary is a tiny blood vessel where substances are exchanged between blood and body cells. Finally, the vein is a blood vessel that carries blood to the back of the heart. That is is why the Circulatory system is very important because without these organs and the system we wouldn't be here.

How blood flows is similar to a figure eight. First it travels to the heart then the lungs then back to the heart. Then it travels from the heart throughout the body and then back to the heart. There are three blood vessels they include arteries, capillaries, and veins. There are functions of the circulatory system. First is delivers waste, blood transports chemical messengers, oxygen from your lungs, and glucose which is sugar from your digestive system to your body's cells.Then the other function is that it removes waste, so blood takes away wastes from your body cells. Then it regulates body temperature which means changes in the amount of blood flow in the skin help carry heat away or prevent heat loss. Finally it can fight diseases. as in blood contains cells that attack disease-causing microorganisms (contains the immune system.)