Solve this:
Q10. Which of the following is an example of positive feedback control in the reproductive cycle of males or females ?
(a) The increased response of the hypothalamus and anterior pituitary gland in response to estrogen.
(b) The decreased response of the hypothalamus and anterior pituitary gland in response to estrogen.
(c) The inhibition of luteinizing hormone by high levels of testosterone.
d) The stimulation of luteinizing hormone by low levels of testosterone.
Dear Student,
Option D is correct.
The hypothalamus releases a hormone called Gonadotropin releasing hormone (GnRH) , which then travels to Pituitary and signals it to produce Luteinizing Hormone (LH). LH is responsible for Sperm and Testosterone production.
So, when the Testosterone level falls , it signals GnRH . GnRH then stimulates Pituitary to produce more LH which in turn elevates the Testosterone level.
This mechanism is an example of Positive Feedback Control in the reproductive system in our body.
Regards
Option D is correct.
The hypothalamus releases a hormone called Gonadotropin releasing hormone (GnRH) , which then travels to Pituitary and signals it to produce Luteinizing Hormone (LH). LH is responsible for Sperm and Testosterone production.
So, when the Testosterone level falls , it signals GnRH . GnRH then stimulates Pituitary to produce more LH which in turn elevates the Testosterone level.
This mechanism is an example of Positive Feedback Control in the reproductive system in our body.
Regards