red marrow
Definition
- Noun:
- Red marrow is a type of bone marrow found in the cavities of certain bones. It is responsible for producing red blood cells, white blood cells, and platelets, a process known as hematopoiesis. It is distinguished by its red, vascular appearance due to the presence of blood and developing blood cells.
Usage
- Red marrow is the primary site for blood cell formation in the human body. In children, most bone marrow is red marrow. In adults, it is primarily found in flat bones (like the hip, sternum, skull, ribs, and vertebrae) and the ends of long bones (like the femur and humerus).
Examples
- Noun:
- A biopsy of the hip bone confirmed the presence of active red marrow.
- The function of red marrow is crucial for maintaining a healthy immune system and oxygen transport.
- With age, some red marrow is gradually replaced by yellow marrow, which is fatty and less active.
Advanced Usage
- Medical Context: In medical diagnostics, the health and cellularity of the red marrow are assessed through a bone marrow aspiration or biopsy to diagnose conditions like leukemia, anemia, or other hematologic disorders.
- The oncologist ordered a test to examine the patient's red marrow for any abnormal cells.
Variants and Related Words
- Bone marrow: The general soft tissue found within bones. Red marrow is a specific, active type of bone marrow.
- Yellow marrow: The other main type of bone marrow, consisting mostly of fat cells and found in the central cavities of long bones in adults.
- Hematopoietic marrow: A technical synonym for red marrow, emphasizing its blood-forming function.
- Myeloid tissue: Another term for red marrow.
Synonyms
- Hematopoietic marrow
- Myeloid tissue (in a specific anatomical context)
Related Terms and Phrases
- Red blood cell (RBC) production: A primary function of red marrow.
- Bone marrow transplant: A procedure that often involves transplanting healthy red marrow stem cells into a patient.
- Marrow cavity: The anatomical space within a bone where red marrow or yellow marrow is located.
Noun
-
bone marrow of children and some adult bones that is required for the formation of red blood cells
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