Some of these incoming fibers go to the motor nucleus of the trigeminal nerve (V), bypassing the pathways for conscious perception. The jaw jerk reflex is an example; tapping the jaw elicits a reflex closure of the jaw in the same way that tapping the knee elicits a reflex kick of the lower leg.
FSH stimulates the production of eggs and LH stimulates the release of the egg. FSH and LH are produced by the pituitary gland in the brain. There are four stages in the menstrual cycle. Stage 1. Days 1-4. Menstruation (bleeding) occurs. The lining of the uterus disintegrates and is shed. This is due to low levels of progesterone. Stage 2. Days 4-14. The uterine lining grows back.
GnRH stimulates the LH burst in response to positive feedback from increasing estrogen levels. fsh is secreted by anterior pituitary which triggers the growth of 6-12 follicles each cycle. 1  Cushing's Disease: When Your Pituitary Makes You Fat Cortisol is a fight-or-flight hormone that is released by the adrenal glands.