1. What is plasma in the context of blood components?
2. What is the typical lifespan of a red blood cell (erythrocyte)?
3. Which of the following is the most common cause of microcytic anemia?
Blood components — main types?
Red cells, white cells, platelets, plasma.
Red Blood Cells — function?
Transport oxygen via hemoglobin.
Anemia — microcytic type?
Often due to iron deficiency or thalassemia.
White Blood Cells — role?
Fight infections and immune response.
Leukemia — common subtype in children?
Acute lymphoblastic leukemia (ALL).
Platelets — function?
Aid blood clotting.
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