PATHOLOGY MCQ
HAEMOPOIETIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these statements is TRUE about haemoglobin?
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One molecule contains 1 atom of iron.
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It is broken down in macrophages.
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It is different in children and adults.
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It has a low level in blood at birth compared with adult life.
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Explanation:
Detailed explanation-1: -Macrophages shape and direct the developing RBC throughout erythropoiesis and ultimately phagocytose senescent RBCs. To perform these tasks, macrophages rely on adhesion molecules, a range of soluble and mechanical factors, and it requires cross talk with the developing or senescent RBC.
Detailed explanation-2: -About 90% of the red blood cells are recycled by macrophages within the spleen, liver and lymph nodes.
There is 1 question to complete.