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Circ. Test Review
Question | Answer |
---|---|
endocardium | smooth layer of cells that lines the inside of the heart and is continuous with the inside of blood cells |
pericardium | a double layered membrane or sac that covers the outside of the heart |
myocardium | the muscular middle layer |
diastole | a brief period of rest |
systole | a period of ventricle contraction |
arterioles | a small diameter blood vessel in the microcirculation that extends and branches out from an artery and leads to capillaries |
veins | blood vessels that carry blood back to the heart |
arteries | carries blood away from the heart |
capillaries | connects arterioles with veuies (smallest veins) |
plasma | 90% waste with many dissolved or suspended substances |
hemoglobin | complex protein that carries both oxygen and carbon dioxide |
aorta | largest artery of the body |
erythrocytes | red blood cells |
thrombocytes | platelets |
leukocytes | white blood cells |
hemophilia | an inherited disease in which there is a missing blood clotting factor; blood clots slowly or abnormally |
aneurysm | an abnormal widening or ballooning of a portion of an artery due to weakness in the wall of the blood vessel |
leukemia | cancerous condition in which there is a great increase in the number of white blood cells |
phlebotomist | someone who draws blood from patients and gets the specimens for analyses |
hematologist | someone who examines and diagnoses the blood and the diseases of the blood |
electrocardiogram | a test that checks for problems with the electrical activity of your heart |