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33 Cards in this Set
- Front
- Back
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In comparison to arteries, veins have ______ amount of smooth muscle. |
a smaller |
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In comparison to arteries, veins have _______ amount of elastic tissue |
a smaller |
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In comparison to arteries, veins have ______ amount of endothelium. |
the same |
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In comparison to arteries, veins have ______ capacity to hold blood. |
a larger |
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In comparison to arteries, veins have ______ resistance to blood flow.
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a smaller |
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In comparison to arteries, capillaries have ______ amount of elastic tissue. |
smaller |
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In comparison to arteries, veins have ______ pressure in their vessels. |
a smaller |
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In comparison to veins of the upper body, veins of the lower body have _____ number of valves. |
a larger |
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The thickness of the left ventricular wall is ______ the thickness of the right ventricular wall. |
greater than |
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Wall thickness of an artery is ______ wall thickness of a vein |
greater than |
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Amount of elastic tissue in veins is _____ the elastic tissue in the arteries. |
less than |
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The thickness of the right atrium wall is ______ the thickness of the left atrium wall. |
equal to or nearly equal |
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contain about 15% of total blood volume |
arteries |
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Considered to be capacity vessels: _____ |
veins |
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Hold about 5% of the total blood volume _____ |
capillaries |
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Which statement does not accurately describe veins? |
always carry deoxygenated blood |
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smooth muscle in the blood vessel wall? |
is most circularly arranged |
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Peripheral resistance |
is inversely related to the diameter of the arterioles |
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Which of the following can lead to decreased venous return of blood to the heart? |
damage to the venous valves |
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Arterial blood pressure increases in response to ? |
o (a) increasing stroke volume, (b) increasing heart rate, (c) atherosclerosis, (d) rising blood volume, (e) all of these |
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Which of the following would not result in the dilation of the feeder arterioles and opening of the precapillary sphincters in systemic capillary beds? |
a local increase in pH |
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The structure of a capillary wall differs from that of a vein or an artery because? |
) it has a single tunic—only the tunica intima, |
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The baroreceptors in the carotid sinus and aortic arch are sensitive to? |
(b) changes in arterial pressure |
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The myocardium receives its blood supply directly from the? |
) coronary arteries |
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10. Blood flow in the capillaries is steady despite the rhythmic pumping of the heart because of the? |
elasticity of the large arteries, |
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unpaired branch of abdominal aorta |
superior mesenteric inferior mesenteric celiac trunk |
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second branch of aortic arch |
left common carotid |
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branch of internal carotid |
ophthalmic |
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branch of external carotid |
superficial temporal facial |
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origin of femoral arteries |
external iliac |
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Tracing the blood from the heart to the right hand, we find that blood leaves the heart and passes through the aorta, the right subclavian artery, the axillary and brachial arteries, and through either the radial or ulnar artery to arrive at the hand. Which artery is missing from this sequence? |
) brachiocephalic |
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Which of the following do not drain directly into the inferior vena cava? |
inferior mesenteric vein |
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14. Suppose that at a given point along a capillary, the following forces exist: capillary hydrostatic pressure (HPc) 5 30 mm Hg, interstitial fluid hydrostatic pressure (HPif) 5 0 mm Hg, capillary colloid osmotic pressure (OPc) 5 25 mm Hg, and interstitial fluid colloid osmotic pressure (OPif) 5 2 mm Hg. The net filtration pressure at this point in the capillary is? |
7 mm Hg. |
