Final answer:
It is true that on day 1 of the cycle, GnRH from the hypothalamus stimulates the anterior pituitary to release FSH and LH, hormones essential for reproductive cycle regulation.
Step-by-step explanation:
On day 1 of the cycle, Gonadotropin-Releasing Hormone (GnRH) secreted by the hypothalamus does indeed stimulate the production and release of Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH) by the anterior pituitary. This is a true statement, aligning with the physiological process in the human body where GnRH plays a critical role in regulating the reproductive cycle by signaling the anterior pituitary to release these crucial hormones.
For instance, in the ovarian cycle, the secretion of FSH and LH by the pituitary gland leads to the stimulation and growth of ovarian follicles, and later on in the cycle, these hormones also play a role in triggering ovulation and promoting the production of estrogen and progesterone, which are critical for maintaining the menstrual cycle and supporting pregnancy.