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Cardiovascular sys
vocabulary for cardiovascular system
Question | Answer |
---|---|
aortic valve | located between the left ventricle and aorta,the largest artery in the body |
arteries | carry blood away from the heart |
blood | flows through the circulatory system,often called a tissue because it contains many kinds of cells |
capillaries | connect arterioles with venules ,the smallest vain |
circulatory sysyem | (cardiovascular system) "transportation" system of the body |
diastole | brief period of rest (in cycle) |
endocardium | smooth layer of cells that line the inside of the heart and is continous with the inside of the blood vessels |
erythrocytes | red blood cells,produced in the red bone marrow at the rate of one million per minute |
hemoglobin | complex protein composed of the protein molecule called "globin" and the iron compound called "heme" |
left atrium | recieves oxygenated blood from the lungs |
left ventricles | recieves blood from the left atrium and pumps the blood into the aorta for transport of the body cells |
leukocytes | white blood cels,are not as numerous as are erythrocytes. |
mitral valve | located between the left atrium and left ventricle closes when the left ventricle closes or when left ventricle is contracting |
myocardium | the muscular middle layer |
periocardium | double-layered membrane |
plasma | approximately 90 percent water,with many dissoved or suspended substances |
pulmonary valve | located between the right ventricle and the pulmonary artery ,a blood vessel that carries blood to the lungs |
right atrium | recieves blood as it returns from the body cell |
right ventricle | recieves blood from the right atrium and pumps the blood into the pulmonary artery,which carries the blood to the lungs for oxygen |
septum | muscular wall that seperates the heart into a right side and a left side |
systole | period of ventricular contractation |
thrombocytes | also called platelets are usually described as a fragment of pieces of cells because they lack nuclei |
tricuspid valve | located between the right atrium and the right ventricle |
veins | blood vessels that carry blood back to the heart |
arrhythemias | abnormal heart rhythm and can be mild to life threatening |