Chapter 4 Male Reproductive System

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Chapter 4 Male Reproductive System
2014-02-23 10:10:47
Male Reproductive System

Chapter 4 The Male Reproductive System
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  1. Pathway of sperm from the testis to the urethra in their proper order.
    Seminiferous tubules -> epididymis -> vas deferens -> urethra
  2. Male gonads; produces sperm and androgens. Located outside body in scrotum.
  3. Highly coild tube adjacent to testis.
  4. Site of testosterone production
  5. The ___ conveys both sperm and urine down the length of the penis.
  6. Organs (4) that contribute to the formation of semen are ____ ____ ____ and ____
    testes, seminal vesicles, prostate gland, and bulbourethral glands
  7. The ____ is an external skin sac that houses the testes
  8. The ____ surrounds the urethra at the base of the bladder; produces a milky fluid
  9. Organ that delivers semen to the female reproductive tract.
  10. Tube that transports sperm during ejaculation from epididymis to urethra.
    Vas deferens
  11. Three important glands of the male reproductive system are the ____ ____, ____ ____, ____ ____
    Seminal vesicles, prostate gland, and bulbourethral glands
  12. The ____ produces lubricating mucus that cleans the urethra.
    Bulbourethral glands
  13. The ____ are passageways from the epididymis to the ejaculatory duct + urethra
    vas deferens
  14. Secrete a thick, yellowish, alkaline fluid containing fructose, vesiculase (coagulationg enzyme) & prostaglandins.
    Seminal vesicles
  15. ____ conveys both sperm and urine down the length of the penis
  16. Secretes a thin, milky fluid containing zinc and fibrinolysin (anticoagulating enzyme)
    Prostate gland
  17. Secrete tiny amount of alkaline mucus into urethra just before ejaculation.
    Bulbourehtral glands
  18. The scrotum is __ cooler than body temperature
    ~2 degrees (Celsius)
  19. Copulatory organ of male, contains 3 columns of erectile tissue, delivers sperm into vagina
  20. External sac enclosing the testes; ~ 2 degrees cooler than the body temperature says the units are Celsius
  21. Development of sperm from germ cells (spermatogonia) by meiosis
  22. What three things occur during the Prenatal period of a male's life?
    1) PCGs migrate to genital ridges (week 3)2) PGCs proliferate and differentiate into spermatogonia (week 5,6, and 7)3) Spermatogonia become inactive
  23. Spermatogonia remain inactive from ___ to ___
    Postnatal -> Prepuberty
  24. Spermatogenesis occures in seminiferous tubules of testes from ___ to ___
    Puberty -> Death
  25. Stage 1 of male reproduction process.
    Proliferation & Regeneration
  26. Spermatogonia (2n) proliferate & differentiate into 3 types: (meiosis) ____ ____ & _____
    Type A Dark Type A Pale & Type B

    (It was noted that the reverse pathway regenerates stem cells)

    I figured this was Type B to Pale A to Dark A
  27. ____ are dormant (reserves).
    Type A Dark
  28. ___ proliferate forming new Type A pale and Type B
    Type A Pale
  29. ___ differentiate into primary spermatocytes (2n)
    Type B
  30. Stage 2 of male reproduction process.
  31. The ____ spermatocyte divides by____ (the process) into two ____ spermatocytes
    primary; Meiosis I; secondary
  32. The ____ spermatocytes divide by ____ (the process) into four ____
    secondary; Meiosis II; spermatids
  33. Stage 3 of male reproduction process.
  34. During Spermiogenesis ___ is transformed into ____
    Spermatid; sperm
  35. 4 events that occur during the transformation of a spermatid into sperm are ____ ____ ____ & ____
    nucleus condenses, acrosome forms, flagellum forms, cytoplasm reabsrobed by Sertoli cells
  36. Where does sperm go once formed?
    Lumen of seminiferous Tubule  then epidydimis
  37. 3 parts for mature sperm are ____ ____ & ____
    Head, Middlepiece, and tail
  38. Two parts of the head of a sperm cell are ___ & ___
    Acrosome and nucleus (n)
  39. The middlepiece of a sperm cell contains the ____
  40. ___ is a functional motile gamete
    Sperm (n)
  41. ___ are the products of meiosis II
    Four spermatids (n)
  42. ___ are the products of meiosis I
    Two secondary spermatocytes (n)
  43. ____ ____ and ____ all contain 23 chromosomes
    Secondary spermatocytes, spermatids, and sperm.
  44. ____ are aka stem cells
    Spermatogonium (2n)
  45. ____ and ____ are two hormones necessary for sperm production.
    Testosterone and FSH (follicle stimulating hormone)
  46. The ____ is theDNA- containing area of the sperm.
    nucleus in the head of the sperm
  47. The enzyme containing sac that aids in sperm penetration of the egg is the ____.
  48. The part responsible for movement is the ____.
  49. The metabolically active organelles that provide ATP to energize sperm movement is the ____.
    Mitochondria in the neck region.