Question

Which of the following is capable of removing unused or damaged platelets?
1. Thyroid
2. Pancreas
3. Stomach
4. Bone marrow
5. All of the above

Answer 1

Correct Answer - Option 4 : Bone marrow

The correct answer is Bone Marrow.

• Bone marrow is required for removing unused or damaged platelet.

• Bone Marrow
  • It is the soft tissue present inside the Medullary cavities of a bone.
  • It is mainly present in the hip and thigh bones.
  • It produces immature cells called Stem cells that can transform into various kinds of cells later on.
  • Mesenchymal and Hematopoietic are the two types of stem cells produced by Bone Marrow.
  • Mesenchymal transform into fat cartilage and bones whereas Hematopoietic turn into Blood cells (RBC, WBC, and Platelets). 
  • Redbone marrow produces all red blood cells and platelets and around 60–70% of lymphocytes in human adults. Other lymphocytes begin life in the red bone marrow and become fully formed in the lymphatic tissues, including the thymus, spleen, and lymph nodes.
    • Together with the liver and spleen, red bone marrow also plays a role in getting rid of old red blood cells.