Old people are more liable to fracture of their bones because

  • A
    Bones become soft and elastic
  • B
    Bones become hard and brittle
  • C
    Bones contain large quantity of organic matter
  • D
    None of the above

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Similar Questions

Low level of $Ca^{2+}$ ions in muscles results in

$A$: 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.

Select the correct statement regarding the specific disorder of the muscular or skeletal system.

Assertion : Arthritis or inflammation of a joint makes the joint painful.
Reason : Some toxic substances are deposited at the joint.

Which of the following is a disorder of the muscular/skeletal system?

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