Low levels of progesterone and estrogen cause the hypothalamus to send a releasing hormone (GnRH) to the pituitary gland. The releasing hormone signals the pituitary gland to release FSH (follicle ...

The pituitary gland, also known as the hypophysis, lies immediately beneath the hypothalamus, resting in a depression of the base of the skull called the pituitary fossa, also called the Turkish ...

The pituitary gland is protected and housed by the sella turcica or bony structure that does not leave much room for any expansion. The hypothalamus, the part of the brain that sits just above the ...

Low levels of progesterone and estrogen cause the hypothalamus to send a releasing hormone (GnRH) to the pituitary gland. The releasing hormone signals the pituitary gland to release FSH (follicle ...