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(D) : Thoracic vertebrae are $12$ in number. Joints between adjacent vertebrae are cartilaginous joints,and the opposing surfaces are connected by fib

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Accumulation of uric acid crystals in joints causes their inflammation.

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(D) : Thoracic vertebrae are $12$ in number. Joints between adjacent vertebrae are cartilaginous joints,and the opposing surfaces are connected by fibrocartilage,which allows very little movement. Osteoporosis is a disease characterized by low bone mass and loss of bone tissue that may lead to weak and fragile bones. Osteoporosis occurs when there is an imbalance between new bone formation and old bone resorption. Generalized osteoporosis is common in elderly people and in women following menopause. In osteoporosis,the osteoblastic (bone-forming) activity in the bone is usually less than normal,and consequently,the rate of bone deposition is depressed. Estrogens inhibit osteoclastic (bone-resorption) activity in the bones and therefore stimulate bone growth. After menopause,almost no estrogens are secreted by ovaries. This estrogen deficiency leads to increased osteoclastic activity in the bones,decreased bone matrix,and decreased deposition of bone calcium and phosphate. In some women,this effect results in osteoporosis.

Select the correct statement with respect to locomotion in humans.

Similar Questions

$A$: Inflammation of a skeletal joint may immobilize the movements of the joint.
$R$: Uric acid crystals in the joint cavity and ossification of articular cartilage lead to this.

Osteoporosis,an age-related disease of the skeletal system,may occur due to:

Assertion: Inflammation of a skeletal joint may immobilize the movements of the joint.
Reason: Uric acid crystals in the joint cavity and ossification of articular cartilage lead to this.

Gout is a type of disorder which leads to:

Which of the following is incorrect regarding osteoporosis?

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