Unformatted text preview:

Chapter 28, part 4Uterine cycleFigure 28.20 The Uterine CycleThe vaginaFigure 28.21 The Histology of the VaginaExternal genitaliaFigure 28.22 The Female External GenitaliaMammary glandsFigure 28.23 The Mammary GlandsHormones of the female reproductive cycleSlide 11Figure 28.25 The Hormonal Regulation of Ovarian ActivityFigure 28.26 The Hormonal Regulation of the Female Reproductive CycleSlide 14SECTION 28-4 The Physiology of Sexual IntercourseMale sexual functionFemale sexual functionSECTION 28-5 Aging and the Reproductive SystemMenopauseMale climactericYou should now be familiar with:Slide 22Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Fundamentals of Anatomy & PhysiologySIXTH EDITIONFrederic H. MartiniPowerPoint® Lecture Slide Presentation prepared by Dr. Kathleen A. Ireland, Biology Instructor, Seabury Hall, Maui, HawaiiChapter 28, part 4The Reproductive SystemCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Repeating series of changes in the endometrium•Continues from menarche to menopause•Menses•Degeneration of the endometrium•Menstruation•Proliferative phase •Restoration of the endometrium•Secretory phase•Endometrial glands enlarge and accelerate their rates of secretionUterine cycleCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsFigure 28.20Figure 28.20 The Uterine CycleCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Major functions•Passageway for elimination of menstrual fluids•Receives the penis during sexual intercourse•Forms the inferior portion of the birth canalThe vaginaCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsFigure 28.21Figure 28.21 The Histology of the VaginaCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Vulva•Vestibule•Labia minora and majora•Paraurethral glands•Clitoris•Lesser and greater vestibular glandsExternal genitaliaCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsFigure 28.22Figure 28.22 The Female External GenitaliaCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Pectoral fat pad•Nipple surrounded by the areola•Function in lactation under control of reproductive hormonesMammary glandsAnimation: Female Reproductive System FlythroughPLAYCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsFigure 28.23a-cFigure 28.23 The Mammary GlandsCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Control the reproductive cycle•Coordinate the ovarian and uterine cyclesHormones of the female reproductive cycleCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Key hormones include:•FSH•Stimulates follicular development•LH •Maintains structure and secretory function of corpus luteum•Estrogens •Have multiple functions •Progesterones •Stimulate endometrial growth and secretionHormones of the female reproductive cycleCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsFigure 28.25Figure 28.25 The Hormonal Regulation of Ovarian ActivityCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsFigure 28.26a-cFigure 28.26 The Hormonal Regulation of the Female Reproductive CycleCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsFigure 28.26d-fFigure 28.26 The Hormonal Regulation of the Female Reproductive CycleAnimation: Regulation of the Female Reproductive CyclePLAYCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsSECTION 28-4 The Physiology of Sexual IntercourseCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Arousal •Leads to erection of the penis •Parasympathetic outflow over the pelvic nerves•Emission and ejaculation •Occur under sympathetic stimulation •Results in semen being pushed toward external urethral opening•Detumescence •Subsidence of erection •Mediated by the sympathetic nervous systemMale sexual functionCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Stages are comparable to those of male sexual function•Arousal causes clitoral erection•Vaginal surfaces are moistened •Parasympathetic stimulation causes engorgement of blood vessels in the nipplesFemale sexual functionCopyright © 2004 Pearson Education, Inc., publishing as Benjamin CummingsSECTION 28-5 Aging and the Reproductive SystemCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•The time that ovulation and menstruation cease•Typically around age 45-55•Accompanied by a decline in circulating estrogen and progesterone •Rise in GnRH, FSH, LHMenopauseCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•Levels of circulating testosterone begin to decline•FSH and LH levels rise•Gradual reduction in sexual activityMale climactericCopyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•The components of the reproductive system, and their functions•The components of the male and female reproductive systems•The processes of meiosis and gametogenesis in both sexesYou should now be familiar with:Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings•The roles played by the male reproductive tract and accessory glands in the functional maturation, nourishment, storage, and transport of spermatozoa•The anatomical, physiological, and hormonal aspects of the male and female reproductive cycles•The physiology of sexual intercourseYou should now be familiar


View Full Document

UT Arlington BIOL 2458 - The Reproductive System

Download The Reproductive System
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view The Reproductive System and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view The Reproductive System 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?