NEET 2017
- Exam
- NEET
- Year
- 2017
- Subject
- Zoology
- Chapter
- Chemical Coordination and Integration
NEET 2017 · Zoology · Chemical Coordination and Integration
Hypersecretion of Growth Hormone in adults does not cause a further...
Hypersecretion of Growth Hormone in adults does not cause a further increase in height, because
Options
- AGrowth Hormone becomes inactive in adults
- BEpiphyseal plates close after adolescence
- CBones loose their sensitivity to Growth Hormone in adults
- DMuscle fibres do not grow in size after birth
Correct answer
B. Epiphyseal plates close after adolescence
Step-by-step solution
Chronic hypersecretion of Growth Hormone (GH) leads to gigantism or acromegaly depending on the age of the individual. If its hypersecretion occurs before the ossification of epiphyseal plates, it causes exaggerated and prolonged growth in long bones. It results in gigantism. In adults, hypersecretion of GH leads to acromegaly. No increase in height occurs because of the ossified epiphyseal plate.