MEDICAL PHYSIOLOGY

PHYSIOLOGY

SYNAPTIC PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these is an example of a positive feedback loop during menstruation?
A
Estrogen leading to an increase in FSH receptors in the follicles, increasing estrogen production further
B
Progesterone inhibiting further secretion of LH & FSH
C
Estrogen and progesterone inhibiting FSH secretion
D
Estrogen levels peaking resulting in LH being secreted
Explanation: 

Detailed explanation-1: -The positive feedback effect of estrogen is the mechanism by which the GnRH cells of the brain and the pituitary gonadotropes produce surges in the secretion of GnRH and gonadotropins, respectively, that lead to ovulation.

Detailed explanation-2: -After the release of follicle-stimulating hormone, ovulation occurs, and the menstrual cycle begins. The rise in one element causes the output to move in the same direction until the task is done, which is an example of a positive feedback process.

Detailed explanation-3: -Postive feedback: occurs at high concentrations near the end of the follicular phase, estrogen becomes a positive inducer of the anterior pituitary. positive feedback triggers the anterior pituitary to release more FSH and LH. more FSH and LH cause the ovary to produce more estrogen.

Detailed explanation-4: -Answer and Explanation: The ovarian hormone involved in a positive feedback loop with the hypothalamus and the anterior pituitary is the estrogen hormone.

There is 1 question to complete.