yellow bone marrow
Definition
Noun: - Yellow bone marrow: A type of bone marrow that is yellow in color due to its high fat content. It is primarily composed of adipose (fat) cells and is found in the central cavities of long bones in adults. Its main function is fat storage, but it can convert back to red bone marrow to aid in blood cell production if the body experiences severe blood loss.
Usage Examples
- Noun:
- The yellow bone marrow in the femur stores energy reserves for the body.
- With age, red bone marrow is gradually replaced by yellow bone marrow in the long bones.
Advanced Usage
- Medical/Anatomical Context: The term is used specifically in anatomy and medicine to distinguish it from red bone marrow. It is often discussed in relation to hematopoiesis (blood cell formation) and bone marrow disorders.
- An MRI can differentiate between red and yellow bone marrow based on fat content.
Variants and Related Words
- Bone marrow (n): The soft, spongy tissue found inside bones. This is the general category.
- Red bone marrow (n): The type of bone marrow responsible for producing blood cells (hematopoiesis).
- Myeloid tissue (n): A technical term for bone marrow, especially red bone marrow.
Synonyms
- Fatty bone marrow: A descriptive synonym emphasizing its composition.
- Yellow marrow: A common shortened form.
Related Phrases/Compounds
- Marrow adiposity: The scientific term for the fat content within bone marrow.
- Marrow conversion: The process where yellow marrow can transform back into red marrow.
Noun
-
bone marrow that is yellow with fat; found at the ends of long bones in adults
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