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Multiple Choice
In the context of tissue structure and blood components, platelets (thrombocytes) are formed by cytoplasmic fragmentation of which type of cell?
A
Neutrophil
B
Erythrocyte (red blood cell)
C
Megakaryocyte
D
Fibroblast
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1
Understand the role of platelets (thrombocytes) in the blood: they are small cell fragments involved in blood clotting and wound repair.
Recall that platelets are not complete cells but fragments derived from a larger precursor cell.
Identify the precursor cell type responsible for producing platelets by cytoplasmic fragmentation, which is the megakaryocyte, a large bone marrow cell.
Recognize that neutrophils are a type of white blood cell involved in immune defense, erythrocytes are red blood cells carrying oxygen, and fibroblasts are connective tissue cells, none of which produce platelets.
Conclude that platelets are formed by the cytoplasmic fragmentation of megakaryocytes.