Red Blood cells
There are about 5,000,000 red blood cells in 1 drop of blood.
White Blood cells • Help body fight off germs • Help fight infections
Platelets • Blood cells that help stop bleeding • It’s the blood that leaks when you get an injury. • In order to stop the bleeding, platelets stick to the opening of injury and that why they seal the broken blood vessel.
Capillaries • Tiny blood vessels that connect arteries to veins. • Food, Oxygen and Wastes pass in and out of blood through capillary walls
Arteries • Delivers oxygen-rich blood from heart to tissues in the body • Each artery is a muscular tube and has 3 layers: • Intima – inner layer by endothelium or smooth tissue • Media – layer of musde that lets arteries handle high pressures from the heart. • Adventitia – connective tissue anchoring arteries to nearby tissues
Right Atrium • One of the 4 hollow cambers in the heart • It’s located on the upper right side • Relatively blood from 2 large veins; return blood that is low in oxygen.
Left Atrium • Receives blood returning to heart from pulmonary veins • Extend from left ventricle to the heart and bring oxygen-rich blood back to heart
Mitral Valve • Located