HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What are the three sources of resistance in blood vessels? (so check 3)
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Blood Viscosity
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Blood Vessel Length
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Blood Vessel diameter
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Cardiac Out Put
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Heart Rate
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Explanation:
Detailed explanation-1: -Numerous factors can alter resistance, but the three most important are vessel length, vessel radius, and blood viscosity. With increasing length, increasing viscosity, and decreasing radius, resistance is increased.
Detailed explanation-2: -Answer and Explanation: Blood vessel diameter is the most significant source of blood flow resistance. A decrease in vessel diameter increases contact and friction between the blood and vessel wall, thus increasing blood flow resistance and blood pressure.
Detailed explanation-3: -Arteries carry blood away from your heart. Veins carry blood back toward your heart. Capillaries, the smallest blood vessels, connect arteries and veins. 07-Sept-2021
There is 1 question to complete.