A&P Chapter 31 The Reproductive System

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A&P Chapter 31 The Reproductive System

  1. 1. Chapter 31 A&P
  2. 2. Introduction <ul><li>The function of the reproductive system is human reproduction. </li></ul><ul><li>Human reproduction results from the union of a female sex cell and a male sex cell. </li></ul>
  3. 3. Female reproductive system <ul><li>The Vagina </li></ul><ul><li>Hallow, pear shaped muscular organ. </li></ul><ul><li>Located in the anterior portion of the pelvic cavity. </li></ul><ul><li>Three areas of the uterus: </li></ul><ul><li>Body </li></ul><ul><li>Isthmus </li></ul><ul><li>Neck or cervix </li></ul>
  4. 4. Female reproductive system <ul><li>Fallopian Tubes </li></ul><ul><li>Also called uterine tubes or oviducts </li></ul><ul><li>Found laterally on either side of the uterus </li></ul><ul><li>Move the ovum from the ovaries to the uterus </li></ul>
  5. 5. Female reproductive system <ul><li>Ovaries </li></ul><ul><li>Located on either side of the uterus </li></ul><ul><li>Attached to the uterus by the ovarian ligament </li></ul><ul><li>Produce ova and hormones </li></ul>
  6. 6. Female reproductive system <ul><li>The Vagina </li></ul><ul><li>A musculomembranous tube that extends from the uterus to the vestibule. </li></ul><ul><li>Functions of the uterus include: </li></ul><ul><li>Copulation </li></ul><ul><li>Passageway for discharge of menstruation </li></ul><ul><li>Birth canal </li></ul>
  7. 7. Female reproductive system <ul><li>Vulva consists of 5 organs that comprise the external female genitalia: </li></ul><ul><li>Mons pubis </li></ul><ul><li>Labia majoria </li></ul><ul><li>Labia minoria </li></ul><ul><li>Vestibule </li></ul><ul><li>Clitoris </li></ul><ul><li>The area between the vulva and the anus is the perineum. </li></ul>
  8. 8. Female reproductive system <ul><li>Breasts </li></ul><ul><li>Mammary glands </li></ul><ul><li>Provide milk for infants </li></ul><ul><li>Prolactin stimulates the production of milk </li></ul><ul><li>Menstrual Cycle </li></ul><ul><li>The onset is called menarche. </li></ul><ul><li>Cessation is called menopause. </li></ul><ul><li>Repeats approximately every 28 days </li></ul>
  9. 9. Male reproductive system <ul><li>Purpose is to provide sperm cells to the ovum. </li></ul><ul><li>Consists of the following: </li></ul><ul><li>Testes and ducts </li></ul><ul><li>Urethra </li></ul><ul><li>Accessory glands; bulbourethral, prostate and seminal vesicles </li></ul><ul><li>Accessory sex organs; scrotum and penis </li></ul>
  10. 10. Male reproductive system <ul><li>External organs </li></ul><ul><li>External organs consist of the scrotum and the penis. </li></ul><ul><li>Scrotum contains smooth muscle fibers that contract, allowing for viability of the spermatozoa. </li></ul>
  11. 11. Male reproductive system <ul><li>Internal Organs </li></ul><ul><li>Testes (gonads)-site of development of the male reproductive cells & the hormone testosterone </li></ul><ul><li>Epidydymis - coiled tube 13-20 feet in length, ends at the ductus deferens; maturation of sperm cells. </li></ul>
  12. 12. Male reproductive system <ul><li>Ductus deferens - vas deferens, it is the excretory duct of the testes </li></ul><ul><li>Seminal vesicles - store sperm and produce semen. </li></ul><ul><li>Prostate gland -lies below the bladder and secretes fluid into the semen. </li></ul>
  13. 13. Male reproductive system <ul><li>Bulbourethral gland -secrete mucous secretion into the seminal fluid before ejaculation. </li></ul><ul><li>Urethra - extends from the bladder to the urethral orifice (meatus) </li></ul>
  14. 14. Prostate cancer warning signs <ul><li>The following are some potential prostate cancer warning signs or signs of BPH: </li></ul><ul><li>incomplete emptying of the bladder </li></ul><ul><li>dribbling </li></ul><ul><li>difficulty starting urination </li></ul><ul><li>reduced force of the stream </li></ul><ul><li>frequent urination of small amounts </li></ul><ul><li>pain with urination </li></ul><ul><li>ejaculation pain </li></ul><ul><li>blood in the urine </li></ul>

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