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Stack #68585
TCCD cardiovascular system HPRS-1206
Question | Answer |
---|---|
heart | located behind sternum and between lungs. circulates blood throughtout body. consists of 2 chambers. about the size of ur fist. |
tricuspid valve | located between the right atrium and right ventricle |
bicuspid valve | located between the left atrium and the left ventricle (also called mitral valve) |
semilunar valves | located between the right ventricle and the pulmonary artery and between the left ventrical and the aorta |
pericardium | 2-layers sac(pericardial sac) covering the heart ( pericardial fluid alows the layers to move without friction) |
visceral pericardium | lies closet to the myocardium |
epicardium (parietal pericardium) | lines the pericardial sac |
myocardium | middle, thick, muscular layer |
endocardium | inner linning of the heart |
arteries | blood vessels that carry blood away from the heart. carry oxygen and other nutrients from the heart to the body cells. except the pulmonary artery it carries carbon dioxide and waste from the heart to the lungs |
blood vessels | tubelike structures that carry blood throughout the body |
arterioles | smallest arteries |
aorta | largest artery in the body |
veins | blood vessels that carry blood back to the heart. (all veins except for pulmonary veins, they carry blood containing carbon dioxide and other wastes. the pulmonary veins carry oxygenated blood from the lungs th the heart.) |
venules | smallest veins |
venae cavae | lagest veins in the body. |
capillaries | microscopic blood vessls that connect arterioles with venules. |
blood | composed of plasma and formed elements. |
plasma | liquid portio of blood in which cells are suspended |
erythrocytes | red blood cells: carry oxygen |
leukocytes | white blood cells: fight infection |
platelets(thrombocytes) | one of the formed elements in the blood that is responsible for aiding in the clotting process |