Male reproductive

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Male reproductive
2012-04-23 21:49:10
Lecture exam four

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  1. Takes somatic cells and makes two
  2. Reduction and division
  3. Somatic cells have _____ chromozomes
  4. Sex cells have _____ chromozomes
  5. sex cells are also called _____.
  6. Where is sperm made?
    Semineferous tubules
  7. What is the male and female sex organ?
    • Testes
    • ovaries
  8. What are the 3 main glands that contribute to sperm ejaculate?
    • Prostate
    • seminal vesicle
    • bulbourethral ( cowpers gland )
  9. sperm cells have how many chromozomes?
  10. gonads are what type of cells?
    Somatic cells
  11. What happens in meiosis I?
    Reduction of 46 chromozomes to two 23 chromozomes
  12. What happens in meiosis II?
    Dna is duplicated 23 chromozomes is duplicated into two 23 chromozome
  13. What are the 2 layers of the testes?
    • Tunica albuginea
    • Tunica vaginalis
  14. After the sperm leave the seminiferous tubules they go into _____.
    Rete testes
  15. When the sperm leave the rete testes they go into _____.
    Efferent ductules
  16. Germ cells will eventually become _____.
    Sex cells
  17. These cell types exist in all different layers of the seminiferous tubules and have 3 different names name all 3
    • Sustentacular cells
    • sertoli cells
    • nurse cells
  18. germ cells eventually become _____.
    sex cells
  19. make substance called Inhibin to decrease sperm production.
    Sustentacular, sertoli, or nurse cells
  20. Keeps small amount of testosterone available in testes for maintaining spermatogenesis (making sperm)
    Androgen binding protein
  21. Assists in making sperm
  22. Testosterone secreations is promoted by
    Lutenizing hormone
  23. causes leydig cells to produce more testosterone
    Lutenizing hormone
  24. androgens and testosterone are made mostly where?
    Leydig cells
  25. passageway between scrotum and the abdominal cavity
    Inguinal canal
  26. Fibromuscular cord that guides the descent of the testicles through the inguinal canal
  27. the testicles descent at what age?
    8 months
  28. Blood vessels, vas deferens, nerves, cremaster muscle that travels with testes.
    Spermatic cord
  29. the stereocilia microvilli in the epididymis have the ability for what?
  30. Highly coiled up to 20ft in lenth
  31. What are the 3 erectile tissues?
    • 2 corpora cavernosa
    • 1 corpus spongiosum
  32. Fluid+sperm=
  33. Accessory gland:
    Bulk of semen
    Seminal vesicle
  34. Accessory gland:
    Alkaline secreations to neutralize acidic vagina
    Seminal vesicle
  35. Accessory gland:
    secreations contain fructose and vitamin C
    Seminal vesicle
  36. _____ stimulate muscle contractions both in male and females and are found in the _____ gland.
    • Prostaglandins
    • seminal gland
  37. Accessory gland:
    Contains fibrinogen that temporarily clots vagina
    Seminal vesicle
  38. Accessory gland:
    20-30% of semen volume
    Prostate gland
  39. Accessory gland:
    Secreations of acid phosphate
    Prostate gland
  40. Accessory gland:
    Rounded, glandular tissue wrapped in smooth muscle
    prostate gland
  41. Accessory gland:
    secreations of seminaplasmin (antibiotic)
    protects against urinary tract infection in males
    prostate gland
  42. Accessory gland:
    Secretes pre-cum
    Bulbourethral glands or cowpers gland
  43. Accessory gland:
    Secretes alkaline fluid that neutralizes any urinaryacids in urethra
    bulbourethral gland or cowpers gland
  44. The hypothalamus releases _____ hormone to the _____.
    • Gonadotropin releasing hormone
    • anterior pituitary gland
  45. The anterior pituitary gland releases these two types of hormones
    • Follicle stimulating hormone
    • Lutenizing hormone
  46. The Lutenizing hormone causes the _____ cells to produce _____.
    • Leydig cells
    • Testosterone
  47. The Nurse cells or sertoli cells release either _____ or _____.
    • Inhibin
    • Spermatogenesis