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NEET · Biology · STD 11 - 19. Chemical coordination and integration
Hypersecretion of growth hormone in adults does not cause further increase in height, because
- A epiphyseal plates close after adolescence
- B bones loose their sensitivity to growth hormone in adults
- C muscle fibres do not grow in size after birth
- D growth hormone becomes inactive in adults.
Answer & Solution
Correct Answer
(A) epiphyseal plates close after adolescence
Step-by-step Solution
Detailed explanation
(a) : Epiphyseal plate is a hyaline cartilage plate in the metaphysis at each end of long bone. It is part of long bone where new bone growth takes place. In adults, elevated levels of \(GH\) results in acromegaly where no increase in height occurs because of ossified epiphyseal plate.
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