| A | B |
|---|
| heart | muscular organ that pumps blood |
| circulatory system | carries blood to all the cells of the body |
| four chambers of the heart | right atrium, left atrium, right ventricle, left ventricle |
| septum | wall separates right from left |
| valves | special flaps separate the chambers and prevent the blood from backing up and flowing the wrong way |
| atria | (plural for atrium) are reservoirs for blood between heartbeats |
| ventricles | work as the pumps |
| superior vena cava/inferior vena cava | carries blood to the heart from the upper and lower portions of the body |
| pulmonary veins | carries blood TO the heart from the lungs |
| pulmonary artery | carries blood FROM the right ventricle to the lungs |
| aorta | largest blood vessel in the body |
| coronary arteries | carry blood to the heart muscle |
| veins | blood vessels that carry blood TO the heart |
| arteries | blood vessels that carry blood FROM the heart |
| cardiac | heart |
| beating | expanding and contracting |
| hemat- | root word means BLOOD |
| liver and spleen | backup supply of red blood cells |
| plasma | liquid half of blood |
| red, white, and platelets | other half of blood |
| blood | carries nutrients and chemicals to all the cells in the body |
| circulatory system | carries food, water, oxygen, and wastes to and from all the cells in the body |
| heart beats | 100,000 times a day |
| heart pumps | 5000-6000 quarts of blood through the body each day |
| blood | food and oxygen for body to survive |
| heart | power source in your body, a pump |
| cardiac muscles | heart is muscle that never stops so needs a large supply of blood for its cells |
| heart size | fist |
| heart weight | almost a pound |
