Cartilage is more difficult to heal than bone because cartilage:
Correct answer: A. Lacks vascular supply
- A. Lacks vascular supply
- B. Lacks mineral deposits in matrix
- C. Has less number of cells deep down
- D. Lacks protein in matrix
Explanation
Cartilage is more difficult to heal than bone primarily because it lacks a vascular supply, meaning it has very limited blood flow. Vascular supply is crucial for the transportation of nutrients, immune cells, and growth factors needed for the healing process. Without a good blood supply, cartilage has a limited ability to repair itself compared to bone, which has a well-developed blood supply to support its healing and regeneration. The other options mentioned also play a role in cartilage's limited healing capacity. For instance, option B is partially true, as cartilage has fewer cells in its deeper layers, which can hinder the healing process. However, the lack of a vascular supply is the most significant factor contributing to the difficulty in cartilage healing.
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The human skeleton provides support, protects organs, enables movement with muscles and stores minerals while bone marrow produces blood cells. Questions cover the axial and appendicular skeleton, types of bones and joints, cartilage, ligaments and tendons, and the difference between fixed, slightly movable and freely movable joints.
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