Q. Which part of the human body is first highly affected by nuclear radiation?
Bone marrow is a semi-solid tissue which may be found within the spongy or cancellous portions of bones. In birds and mammals, bone marrow is the primary site of new blood cell production or hematopoiesis. It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells. In adult humans, bone marrow is primarily located in the ribs, vertebrae, sternum, and bones of the pelvis.
- Eyes
- Lungs
- Bone marrow
- Skin
- None of these
Answer: Bone Marrow
Bone marrow is a semi-solid tissue which may be found within the spongy or cancellous portions of bones. In birds and mammals, bone marrow is the primary site of new blood cell production or hematopoiesis. It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells. In adult humans, bone marrow is primarily located in the ribs, vertebrae, sternum, and bones of the pelvis.
Exposure to radiation or chemotherapy will kill many of the rapidly dividing cells of the bone marrow, and will, therefore, result in a depressed immune system. Many of the symptoms of radiation poisoning are due to damage sustained by the bone marrow cells.
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