NEETZoologyChemical Coordination and Integration
What is the role of GnRH in the regulation of pituitary hormone synthesis and secretion?
Options
- AIt stimulates the release of gonadotrophins
- BIt inhibits the release of gonadotrophins
- CIt stimulates the release of growth hormone
- DIt inhibits the release of growth hormone
Correct answer
A. It stimulates the release of gonadotrophins
Step-by-step solution
The hypothalamic hormone called Gonadotrophin releasing hormone (GnRH) stimulates the pituitary synthesis and release of gonadotrophins. On the other hand, somatostatin from the hypothalamus inhibits the release of growth hormone from the pituitary. These hormones originating in the hypothalamic neurons, pass through axons and are released from their nerve endings. These hormones reach the pituitary gland through a portal circulatory system and regulate the functions of the anterior pituitary. The posterior pituita