Describe the positive feedback loop involved in ovulation
What will be an ideal response
A high concentration of estrogens stimulates more frequent release of GnRH from the hypothalamus. It also directly stimulates gonadotrophs in the anterior pituitary to secrete LH. GnRH promotes the release of FSH and additional LH by the anterior pituitary. LH causes rupture of the mature ovarian follicle and expulsion of a secondary oocyte about 9 hours after the peak of the LH surge. The ovulated oocyte and its corona radiata cells are usually swept into the uterine tube.
You might also like to view...
The point where the body of the mandible meets the ramus is the ____________________.
Fill in the blank(s) with the appropriate word(s).
Carpal tunnel syndrome is a result of damage to the ________ nerve
A) Radial B) Carpal C) Lateral D) Median
The white matter of the spinal cord is mainly
A) unmyelinated axons. B) neuroglia. C) Schwann cells. D) myelinated axons. E) nodes of Ranvier.
Recruitment of different types of motor units in a muscle is one means of varying the amount of tension generated in that muscle
Indicate whether the statement is true or false.