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Questions and Answers
What type of bone marrow is present throughout all bones at birth?
Which statement is true regarding the type of bone marrow present in adults?
During childhood, what happens to red bone marrow in the distal long bones?
Where is red bone marrow found in adults?
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What fills the medullary cavity of long bones in adults?
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Study Notes
Bone Marrow
- Bone marrow is the soft, spongy tissue within bones responsible for producing blood cells.
- It is found in the medullary cavity of long bones and the spaces of cancellous bone.
- At birth, bone marrow is entirely red, filling the marrow cavities of all bones.
- Red bone marrow is responsible for producing all types of blood cells.
- During childhood, some red bone marrow is replaced by yellow bone marrow, particularly in the distal long bones.
- Yellow bone marrow is mainly composed of fat cells, and does not produce blood cells.
- In adults, red bone marrow is only present in specific locations, including the skull, vertebrae, sternum, ribs, hip, upper femur, and humerus.
- Yellow bone marrow fills the medullary cavity of most long bones in adults.
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Description
This quiz provides a comprehensive overview of bone marrow, covering its structure, function, and changes from birth to adulthood. Learn about the differences between red and yellow bone marrow and their respective roles in blood cell production. Test your knowledge on this crucial component of the human skeletal system.
