A cell fragment released by bone marrow that helps in blood clotting is called a

A cell fragment released by bone marrow that helps in blood clotting is called a

• A. Platelet
• B. Leukocyte
• C. Erythrocyte
• D. Hematopoietic Stem Cell

Answer: (A)

Blood clotting relies on platelets that rapidly respond to vessel injury. Platelets are small cell fragments released from megakaryocytes in the bone marrow. Once in the bloodstream, they adhere to exposed damaged tissue, become activated, and release granules that recruit more platelets and support the coagulation cascade, forming a stable plug and eventually a fibrin mesh. This platelet action is distinct from leukocytes (immune cells), erythrocytes (oxygen-carrying red blood cells), and hematopoietic stem cells (the precursors to all blood cells). So the cell type that fits the description best is platelets.

Blood clotting relies on platelets that rapidly respond to vessel injury. Platelets are small cell fragments released from megakaryocytes in the bone marrow. Once in the bloodstream, they adhere to exposed damaged tissue, become activated, and release granules that recruit more platelets and support the coagulation cascade, forming a stable plug and eventually a fibrin mesh. This platelet action is distinct from leukocytes (immune cells), erythrocytes (oxygen-carrying red blood cells), and hematopoietic stem cells (the precursors to all blood cells). So the cell type that fits the description best is platelets.