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LE Cardio vocab
LE cardio vocab
| Term | Definition |
|---|---|
| Circulation | the transport of materials throughout the body |
| Atria | upper chambers of the heart |
| Ventricle | lower chambers of the heart |
| Septum | muscle dividing the right and left sides of the heart |
| Atrioventricular valves | valves between the atria and ventricles; control blood flow from atria to ventricle |
| Superior vena cava | large vein that drains upper part of body into heart (right atria) |
| Inferior vena cava | large vein that drains lower part of body into heart (right atria |
| Aorta | largest artery through which blood leaves heart (from left ventricle) |
| Pulmonary artery | artery that takes blood from right ventricle to lungs; only artery that carries deoxygenated blood |
| Pulmonary vein | vein that takes blood from lungs to left atria; only vein that carries oxygenated blood |
| Arteries | carry oxygenated blood away from heart to body cells; under pressure |
| Veins | carry deoxygenated blood to the heart; no pressure; contains valves |
| Capillaries | single celled thick vessels that connect arteries & veins; exchange of materials occurs here |
| Oxygenated | contains oxygen |
| Deoxygenated | does not contain oxygen; usually contains CO2 |
| Diffusion | passive transport from an area of high concentration to low concentration |
| Plasma | liquid portion of the blood |
| Red blood cells | carry O2 in form of hemoglobin; mature cells do not contain nucleus |
| White blood cells | used in immune response; fight pathogens |
| Platelets | used for blood clotting |
| Lymph | fluid found in lymph vessels |
| Intercellular fluid | ICF – fluid found around cells |
| Coronary circulation | circulation within the heart muscle |
| Pulmonary circulation | circulation between the heart and lungs |
| Systemic circulation | circulation between heart and body cells |
| myocardial infarction | heart attack |
| high blood pressure | disease can lead to heart disease; increased pressure requires the heart to pump more strongly |
| anemia | lack of iron which results in lack of O2 carried by blood; fatigue common symptom |
| congestive heart failure | when heart stops pumping; usually due to fluid around the heart or lungs |
| hemophilia | blood disease due to a lack of platelets & blood clotting factors; blood cannot clot properly |
Created by:
jgarrisi
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