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NEET · Biology · STD 11 - 17. Locomotion and movement
Osteoporosis, an agerelated disease of skeletal system, may occur due to
- A immune disorder affecting neuromuscular junction leading to fatigue
- B high concentration of \(Ca\) and \(Na\)
- C decreased level of estrogen
- D accumulation of uric acid leading to inflammation of joints.
Answer & Solution
Correct Answer
(C) decreased level of estrogen
Step-by-step Solution
Detailed explanation
(c) : Osteoporosis is reduction in bone mineral density, resulting in bones that are brittle and liable to fracture. Infection, injury and synovitis can cause localised osteoporosis of adjacent bone. Generalised osteoporosis is common in the elderly and in women after menopause. After menopause the estrogen levels in blood plasma are much reduced. Estrogen helps to regulate bone cells called osteoclasts which are responsible for building new bone. When estrogen levels drop fewer osteoclasts are produced resulting in osteoporosis.
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