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.
A polyp in the uterus is an overgrowth of tissue that arises from the endometrium-the uterine lining. This tissue is expelled during the menstrual cycle. After a period, the endometrium regenerates rapidly under the influence of hormones.Polyps occur in areas where the lining grows in excess.Uterine polyps are oval or round, they remain attached to the uterine wall by a large base or a thin stalk.Polyps usually occur in perimenopausal or postmenopausal women.his tissue is expelled during the menstrual cycle. After a period, the endometrium regenerates rapidly under the influence of hormones. Polyps occur in areas where the lining grows in excess. Uterine polyps are oval or round, they remain attached to the uterine wall by a large base or a thin stalk.