Circulatory System
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35 terms
Terms | Definitions |
|---|---|
 atherosclerosis | fatty build up of artery walls |
| hypertension | blood pressure is higher than normal |
| plasma, white blood cells, platelets, and red blood cells | the four parts of the blood |
| right atrium, right ventrical, pulmonary artery, luungs, pulmonary veins, left atrium, left ventrical, aorta, artery, capillaries, veins | steps of the blood flow |
| arteries | take blood away from the heart |
| veins | take blood to the heart |
| capillaries | connect the veins and the arteries and they are the smallest blood vessel |
| red blood cells | carry the nutrients and oxygen to the body |
| platelets | clot your blood and form a scab when you cut yourself |
| white blood cells | help fight infections when you are sick |
| A and O | A blood can recieve |
| B and O | B blood can recieve |
| AB, A, B, and O | AB blood can recieve |
| O | O blood can recieve |
| needed substances, waste products, and cells that fight disease | What three things are carried throughout the body by the cardiovascular system? |
| valve | a flap of tissue that prevents blood from flowing backward |
| pacemaker | the group of cells that adjusts the speed of the heart beat |
| aorta | the largest artery in the body |
| diffusion | one process in which materials are exchanged between the blood and the body cells |
| blood pressure | blood excerts a force |
| sphygmomanometer | instrument that measures blood pressure |
| plasma | liquid part of the blood |
| hemoglobin | iron-containing protein that binds chemically to oxygen molecules and they are found in red blood cells |
| fewer, larger, contain nuclei, and they live longer | four ways in which white blood cells are different from red blood cells |
| fibrin weaves to form a clot | blood clot forms by |
| blood transfusion | blood from one person to another |
| Rh factor | determins positive or negitive |
| lymphatic system | a network of veinlike vessels that returns the fluid to the bloodsteam |
| lymph | the fluid inside the lymphatic system |
| trap bacteria | lymph nodes help fight disease by |
| chloesterol | fatty waxy substance |
| damages the walls of the blood vessels and blood has to pump harder | two reasons why hypertension is a serious problem |
| saturated fats and transfats, chloesterol, and sodium | people should eat a diet that is less in these substances |
| coronary | the kind of artery that supplies blood to the heart itself |
| blood travels from the heart to the lungs and then back to the heart. blood is pumped from the heart throughout the body and returned to the heart. | the loop in which the blood picks up oxygen |
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