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Multiple Choice
In a healthy adult, all red blood cells (erythrocytes) originate in which type of bone marrow?
A
Red bone marrow
B
Articular cartilage
C
Yellow bone marrow
D
Compact (cortical) bone
Verified step by step guidance
1
Understand the function of different types of bone marrow: Red bone marrow is responsible for hematopoiesis, which is the production of blood cells, including red blood cells (erythrocytes).
Recognize that yellow bone marrow primarily stores fat and does not actively produce blood cells under normal conditions.
Know that compact (cortical) bone is the dense outer layer of bone that provides structural support but does not produce blood cells.
Identify that articular cartilage is a smooth tissue covering the ends of bones in joints and is unrelated to blood cell production.
Conclude that since red blood marrow is the site of erythrocyte production, all red blood cells in a healthy adult originate from red bone marrow.