PATHOLOGY MCQ
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To warm the muscles up.
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To deliver Glucose to the muscles.
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To deliver oxygen to the muscles.
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To provide white blood cells to the muscles.
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To remove Carbon Dioxide from the muscles.
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Detailed explanation-1: -First, because the metabolic costs of muscle contraction can be high and prolonged, skeletal muscle blood flow needs to be matched to the metabolic demands of the contracting muscles. Second, regulation of blood pressure is also needed to ensure there is adequate perfusion pressure to all organs.
Detailed explanation-2: -When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide.
Detailed explanation-3: -More oxygen diffuses from the blood into the muscle cell. There is a low partial pressure of carbon dioxide in the blood. The same as at rest. Due to internal respiration producing more carbon dioxide in the muscle cell there is a higher partial pressure of carbon dioxide in the pulmonary muscle cell than at rest.