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Terms in this set (34)
carry away blood from the heart
return blood to the heart
carries oxygen-poor blood from the heart to the lungs and back
tiny vessels between the smallest arteries and veins
discharge blood into the vessesls to leave the heart
right atrium and ventricle
pumps blood into the pulmonary arteries
left atrium and ventricle
receives blood from pulmonary veins
Four chambers of the heart
the right atrium and ventricle, left atrium and ventricle.
surrounds the heart.
lines the heart
small amount of lubricating fluid in heart.
visceral pericardium (epicardium)
covers the heart's outer surface
lines in the inner surface of the pericardial sac.
surrounds the heart and helps prevent overfilling.
Three layers of the heart
epicardium, myocardium, endocardium
the visceral pericardium
the muscular wall of the heart; consists bulk of the heart.
the epithelium covering the inner surfaces of the heart including the valves.
supplies blood to the heart muscles
superior & inferior vena cava
The right atrium receives blood from the systemic circuit through two great veins
atrioventricular valve (AV)
valve which allows blood to flow from the atria to the ventricles
Blood leaving the right ventricle enters the ___ ___ after passing through the pulmonary valve.
valve positioned between the right ventricle and the pulmonary artery
left and right pulmonary arteries
Branch from the pulmonary trunk and carry deoxygenated blood to the arteries
left and right pulmonary veins
where the left atrium receives oxygenated blood from; it has thicker walls than those of the right atrium.
left atrioventricular valve
(mitral or bicuspid valve) Blood leaving the left atrium flows into the left ventricle through _____ _____ ____
where blood leaving the left ventricle passes through and into the systemic circuit via the ascending aorta.
Branches off the left ventricle; carries oxygen rich blood to parts of the body above the heart
where blood passes through from the ascending aorta and into the descending aorta.
the descending part of the aorta that branches into the thoracic and abdominal aortae
aortic & pulmonary valve
two semilumar valves; guarding the exits of the left and right ventricles.
the closure of valves and rushing of blood through the heart cause characteristic ___ ___ that can be heard during auscultation.
originate at the base of the ascending aorta, and each gives rise to two branches.
left coronary artery
one of two arteries from the aorta that nourish the heart (divides into the circumflex and anterior descending branches)
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