PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The lumen is ____
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The size of the blood vessel
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The length of the blood vessel
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The internal diameter of a blood vessel
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The diameter of the whole blood vessel
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Explanation:
Detailed explanation-1: -The diameter of a capillary lumen ranges from 5–10 micrometers; the smallest are just barely wide enough for an erythrocyte to squeeze through. Flow through capillaries is often described as microcirculation.
Detailed explanation-2: -Definition 1. The length of the diameter passing through the center of a hollow cavity or tubular organ. ( NCI Thesaurus)
Detailed explanation-3: -They range from 2 to 12 micrometers, which is even less than the diameter of a human hair.
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