PATHOLOGY MCQ
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is true of a vein?One, some or all answers could be correct?
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it carries blood back to the heart
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it has a thick layer of elastic tissue
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it has a thin layer of muscle tissue
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it has a wide lumen
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Explanation:
Detailed explanation-1: -Hence, the correct answer is ‘Transport of deoxygenated blood’
Detailed explanation-2: -Veins carry unoxygenated blood towards the heart, away from tissues at low pressure so the lumen is large. Blood moves more slower and often against gravity so valves and a larger lumen ensure it is still transported efficiently.
Detailed explanation-3: -Identification of Blood Vessels Veins have thin walls but typically have wider lumen (lumen size may vary depending on specific artery or vein) Capillaries are very small and will not be easily detected under the same magnification as arteries and veins.
There is 1 question to complete.