click below
click below
Normal Size Small Size show me how
Kennedy KP Cardio.
Circulatory System
| Term | Definition |
|---|---|
| cardiovascular system | a collection of organs that work together to transport materials to and from the cells of the body |
| parts of cardiovascular system | heart, blood, blood vessels |
| parts of blood | plasma, RBC's, WBC's, platelets |
| plasma | fluid portion of the blood |
| red blood cells (RBC) | most abundant cell in blood, carries oxygen using hemoglobin |
| white blood cells | destroy pathogens (bacteria, virus) |
| platelets | fragments of cells that create blood clots |
| heart | muscular organ that pumps blood throughout the body |
| parts of the heart | right atrium, right ventricle, left atrium, left ventricle |
| right atrium | gets oxygen poor blood from the body |
| right ventricle | sends oxygen poor blood to the lungs to get oxygen |
| left atrium | gets oxygen rich blood from the lungs |
| left ventricle | sends oxygen rich blood to the rest of the body & picks up carbon dioxide |
| blood vessels | tubes that transport blood |
| artery | blood vessel that carries blood away from heart |
| vein | blood vessel that carries blood in to the heart |
| capillary | smallest blood vessel, joins arteries and veins; gas exchange occurs here |
| pulmonary circulation | circulation of blood between the heart and lungs |
| systemic circulation | circulation of blood between the heart and the rest of the body |
| blood pressure | the force exerted by blood on the inside walls of a blood vessel |
| exercise | your cells need more oxygen so the heart beats faster |
| blood types | A, B, AB, O |
| blood type AB | universal recipient |
| blood type O | universal donor |
| atherosclerosis | fatty material builds up on the inside of blood vessels; can lead to heart attack |
| high blood pressure | caused by atherosclerosis; overworks heart and blood vessels |