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The layer of the heart wall synonymous with the visceral layer of the serous pericardium is the
When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the
left ventricle to the left atrium
Deoxygenated blood is returned to the right side of the heart by the
superior and inferior vena cavae
The path of blood flow within the systematic vascular system is:
arteries, arterioles, capillary beds, venules, veins
Which one is the correct sequence going from outermost to the innermost layer of a blood vessel wall:
tunica externa, tunica media, tunica intima
Which of the following arteries supplies the first half of the large intestine?
superior mesenteric artery
True or false: The semilunar valves prevent the backflow of blood into the atria when the ventricles are contracting
True or false: Blood drained from the heart after cardiac circulation returns to the left atrium of the heart.
The heart is situated within the medial portion of the thoracic cavity, an indentation known as the
Blood nourishing the myocardium with oxygenated blood comes from vessels that branch off the aorta called
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