Put the endocrine pathway in the correct order. Ovaries/Testes Gonadotrophs in the anterior pituitary gland. Triggers ovulation/formation of the corpus luteum which produces progesterone and estrogen in ovaries/testosterone production in testes Gonadotropin releasing hormone (GnRH) is released from hypothalamus. Luteinizing hormone (LH) is released.
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Biological Male — XY HPGA The hypothalamus has neurosecretory neurons that produce the hormone GnRH. In response, the anterior pituitary releases two hormones known as FSH and LH. FSH will act on the Sertoli cells to initiate sperm production. This in turn causes the seminiferous tubules to produce the hormone inhibin. LH will act on the Leydig cells to initiate the production of testosterone. Biological Female — XX HPGA The hypothalamus secretes the hormone GnRH, which acts on the anterior pituitary, causing secretion of the two hormones FSH and LH. FSH acts on the ovary to begin the maturation of about 20 ovarian follicles. As these follicles mature, they produce the hormone estrogen. This causes the proliferation of the endometrial lining of the uterus and a surge in LH levels just prior to ovulation, which lasts for about 12–48 hours each month. Once the egg has been ovulated, the remaining follicle cell develops into the corpus luteum. This yellow body produces large amounts of the hormone progesterone, which causes the endometrium to become secretory in preparation for implantation should the ovum be fertilized. If the ovum is not fertilized, the body degenerates resulting in a drop of both of estrogen and progesterone levels. The endometrium then sloughs off in the menstrual flow. The drop in estrogen and progesterone removes the negative feedback inhibition and GnRH is once again released by the hypothalamus and the cycle begins anew.
Adi S.
GNRH (gonadotropin-releasing hormone) stimulates the anterior pituitary gland to release luteinizing hormone (LH). LH stimulates interstitial cells to produce testosterone. Inhibin inhibits FSH (follicle-stimulating hormone) secretion, which causes a decrease in sperm production and testosterone production. In females, LH release is regulated by progesterone. Estrogen causes the maturation of the egg and the development and maintenance of the female reproductive structures.
Sukhwinder N.
Match each hormone produced and function to the proper organ. Multiple answers may be possible for each section. Hormone(s) produced Functions Hypothalamus Anterior pituitary Testis Ovary Stimulates gonadotrophs to release FSH and LH LH Androgens (testosterone) FSH GnRH Progesterone Spermatogenesis, male secondary sexual characteristics, and male embryonic development Stimulates the ovaries and testes to secrete estrogens, progesterone, and testosterone. Female secondary sexual characteristics, prepare uterus for implantation Estrogens Drag and drop the correct answers into the boxes. You can also click the correct answer, then the box where it should go. Reset my answers.
Supreeta N.
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