Questions and Answers
What is the estimated percentage of body weight that the bone marrow accounts for?
4% to 5%
What type of tissue is the bone marrow?
Highly organized and specialized tissue
What is the bone marrow devoid of?
Lymphatic drainage
What surrounds the hematopoietic tissue islands and adipose cells in the bone marrow?
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What is the bone marrow's role as a primary lymphoid tissue?
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Study Notes
Bone Marrow Composition
- Bone marrow accounts for approximately 4% of an adult's body weight.
- Bone marrow is a type of spongy, fatty tissue.
Bone Marrow Characteristics
- The bone marrow is devoid of nerve fibers.
- A network of reticular fibers surrounds the hematopoietic tissue islands and adipose cells in the bone marrow.
Bone Marrow Function
- As a primary lymphoid tissue, the bone marrow plays a crucial role in the production of immune cells, including B cells and certain T cells.