PPT - 306 - SCIENCE 10 - HORMONES INVOLVED IN THE FEMALE REPRODUCTIVE CYCLES PDF

Coordinated Functions of the Reproductive, Endocrine, and Nervous Michael Jayson D. Mallari Systems Caloocan National Science and  Role of Hormones in the Female Reproduct Michael Jayson D. Mallari Caloocan National Sci...

Coordinated Functions of the Reproductive, Endocrine, and Nervous Michael Jayson D. Mallari Systems Caloocan National Science and  Role of Hormones in the Female Reproduct Michael Jayson D. Mallari Caloocan National Science and Technology  Hormones in Male Reproductive System Gonadotrophin-releasing hormone (GnRH) Hypothalamus Pituitary Gland Follicle-stimulating hormone (FSH) Luteinizing hormone (LH)  The hypothalamus secretes GnRH. Hypothalamus GnR Pituitary H Gland  The GnRH activates the release of Hypothalamus FSH and LH. GnR Pituitary H FSH LH Gland  The LH goes to testicular cells and Hypothalamus stimulates the secretion of testosterone. GnR Pituitary H FSH LH Gland Testes Testicular cells Testostero ne  The FSH, along with testosterone, Hypothalamus stimulates sperm production. GnR Pituitary H FSH Gland LH Testes Testicular cells Testostero Seminiferous ne Tubules  Hypothalamus High concentration of testosterone GnR inhibits the secretion of GnRH. Pituitary H Gland LH FSH Testes Testicular cells Testostero Seminiferous Tubules ne Hormones in Female Reproductive System  The hypothalamus secretes GnRH. Hypothalamus GnR Pituitary H Gland  The GnRH activates the release of Hypothalamus FSH and LH. GnR Pituitary H FSH LH Gland  The FSH and LH stimulate the Hypothalamus secretion of estrogen. GnR Pituitary H FSH LH Gland Ovaries Estrogen  Menstruation Phase A.If fertilization does not occur, the corpus luteum disintegrates. B. The follicle bursts and a mature egg is released. C. The egg cell travels down the fallopian tube where it may be fertilized. D. The follicular cells grow. E.The follicle transforms into corpus luteum. F. The uterine lining sheds off and falls away. G. The follicular cells produce estrogen. H. The pituitary gland secretes FSH to stimulate the growth of ovarian follicles. I. The thickening of the uterine lining is maintained in preparation for pregnancy due to the presence of progesterone.  Follicular Phase A.If fertilization does not occur, the corpus luteum disintegrates. B. The follicle bursts and a mature egg is released. C. The egg cell travels down the fallopian tube where it may be fertilized. D. The follicular cells grow. E.The follicle transforms into corpus luteum. F. The uterine lining sheds off and falls away. G. The follicular cells produce estrogen. H. The pituitary gland secretes FSH to stimulate the growth of ovarian follicles. I. The thickening of the uterine lining is maintained in preparation for pregnancy due to the presence of progesterone.  Ovulation Phase A.If fertilization does not occur, the corpus luteum disintegrates. B. The follicle bursts and a mature egg is released. C. The egg cell travels down the fallopian tube where it may be fertilized. D. The follicular cells grow. E.The follicle transforms into corpus luteum. F. The uterine lining sheds off and falls away. G. The follicular cells produce estrogen. H. The pituitary gland secretes FSH to stimulate the growth of ovarian follicles. I. The thickening of the uterine lining is maintained in preparation for pregnancy due to the presence of progesterone.  Luteal Phase A.If fertilization does not occur, the corpus luteum disintegrates. B. The follicle bursts and a mature egg is released. C. The egg cell travels down the fallopian tube where it may be fertilized. D. The follicular cells grow. E.The follicle transforms into corpus luteum. F. The uterine lining sheds off and falls away. G. The follicular cells produce estrogen. H. The pituitary gland secretes FSH to stimulate the growth of ovarian follicles. I. The thickening of the uterine lining is maintained in preparation for pregnancy due to the presence of progesterone. M Most Essential Learning E Competency Describe the feedback mechanisms involved in L regulating processes in the female reproductive C system (e.g., menstrual  Specific Learning Objectives Explain the roles of different hormones in the control of the 1 menstrual cycle. Describe the feedback mechanisms involved in regulating 2 processes in the female reproductive system using diagram.  Lesson 2: The Role of Hormones in Objectives: the Female Reproductive Explain the roles of different Cycles control of the menstrual cycle. hormones in the Describe the feedback mechanisms involved in  Menstrual Cycle The cycle usually lasts for 28 days but the lengths of each phase  Ovarian Cycle The cycle usually lasts for 28 days but the lengths of each phase  Day 1-5 Ovarian The follicular phase begins. The anterior pituitary gland releases FSH and LH. New follicle is developed. Uterine The mixture of blood and discarded tissues exit the body. Which hormone controls the secretion  Day 5-10 Ovarian The anterior pituitary gland continues to produce FSH and LH to develop the follicle. Both FSH and LH cause the Uterine follicle to produce The uterine lining is estrogen. being repaired.. Increased level of estrogen cause the  Day 11-14 Ovarian More LH will be released to increase the amount of estrogen. The sudden increase of FSH and LH will cause Uterine the follicle to rupture. The uterine lining continues to thicken due to the increased level of  Ovulation The monthly release of an ovum from the ovary. The high level of estrogen in the bloodstream will inhibit the production of GnRH. Day 15-onwards Ovarian The ruptured follicle turns into corpus luteum. It will continue the secretion of estrogen and also begin Uterine to secrete progesterone. The progesterone and estrogen will develop the uterine lining further to  If fertilization occurs… The fertilized egg will become a zygote. It implants itself in the uterine lining and releases hormone to keep the corpus luteum functioning. If fertilization did not occur… The egg passes through the uterus without implantation. The corpus luteum disintegrates causing the sudden drop of the progesterone and estrogen levels. If fertilization did not occur… The sudden drop of estrogen and progesterone levels will trigger the breakdown of the uterine The lining. lining will detach itself from the uterine wall and will be discharged together with the unfertilized egg.  After menstruation The estrogen level becomes low, stimulating the production of GnRH by the hypothalamus. What is the difference between ovarian cycle and menstrual cycle? Why does menstruation come with painful sensation? Occasionally, a zygote does not move into the uterus but attaches to the wall of the fallopian tube. Why is this a potentially dangerous situation for the mother? Why is it not advisable for women nearing menopausal stage to get pregnant? Thank you!