Male Reproduction

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Author:
bbergeron
ID:
113452
Filename:
Male Reproduction
Updated:
2011-10-31 16:30:13
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Anatomy
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Test on 11/1/11
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  1. Primary sex organs (seeds); Testies in males and Ovaries in females.
    Gonads
  2. Gonads secrete hormones as well as?
    • 1. Gametes (sex cells); Sperm - males gametes and
    • ova (eggs) - female gametes.
  3. Primary reproductive organ of the male?
    Testes
  4. Site of testosterone production.
    Testes
  5. Tubular storage site for sperm; hugs the lateral aspect of the testes.
    Epididymis
  6. Passageway from the epididymis to the ejaculatory duct
    Ductus deferens
  7. Conveys both sperm and urine down the length of the penis.
    Urethra
  8. Produces more than half of the seminal fluid.
    Seminal vesicles
  9. Surrounds the urethra at the base of the bladder; produces milky fluid.
    Prostate
  10. Produces a lubricating mucus that cleanses the urethra.
    Bulbourethral glands
  11. A milky white; somewhat stick mixture of sperm and accessory gland
    secretions
    Semen
  12. Semen is an alkaline in order to help....
    neutralize the acidic environment of the female vagina to protect delicate sperm.
  13. An antibiotic chemical that destroys certain bacteria
    Seminalplasmin
  14. How much sperm is in 1 ml of semen?
    50 to 150 million sperm
  15. Two homeostatic imbalances are?
    • Cystis
    • Male interility
  16. Organ that delivers semen to the female
    reproductive tract.
    Penis
  17. External skin sac that houses the testes.
    Scrotum
  18. The production of sperm cells that being at puberty and continues throughout life in which occurs in the seminiferous tubules
    Spermatogenesis
  19. A stimulating hormone (FSH) that modifies spematongonia division
    Follicle
  20. Spermatogonia (stem cells) undergo rapid mitosis in order to produce....
    more stem cells before puberty
  21. What are the two cells that are produced in
    spermatogonia division?
    • A stem cell, called type A daughter cell.
    • A primary spermatocyte, called type B daughter cell.
  22. Primary spermatocytes undergo what?
    Meiosis.
  23. One primary spermatocyte produces...
    four haploid spermatids
  24. 23 chromosomes (half as much material as other body cells
    Haploid spermatids
  25. A union of sperm (23 chromosomes) with an egg (23 chromosomes) creates what?
    A zygote, diploid; 2n or 46 chromosomes.
  26. Late spermatids are produced with what three distinct regions?
    • Head
    • Midpiece
    • Tail
  27. What results after maturing of spermatids?
    Sperm cells
  28. Spermatogenesis takes how long?
    64 to 72 days
  29. The mature sperm cells are the only what?
    Human flagellated cell
  30. What part of the mature sperm cell is wrapped by mitochondria for ATP generation?
    Midpiece
  31. What contains DNA that breaks down and releases enzymes to help the sperm penetrate an egg?
    The head of a mature sperm cell.
  32. Acrosome is what?
    "Helmet on the nucleus, similar to a large lysosome
  33. During puberty, what is produced in order to activate the interstitial cells?
    Luteinizing hormone (LH)
  34. The most important hormone of the testes is what?
    Testosterone
  35. Testosterone causes what four secondary sex characteristics?
    • Deepening of voice
    • Increased hair growth
    • Enlargement of skeletal muscles
    • Thickening of bones
  36. What are the three functions of testosterone?
    • Stimulates reproductive organ development
    • Underlies sex drive
    • Causes secondary sex characteristics
  37. List the four organs that contribute to the formation of semen.
    • Bublbourethral glands
    • Prostate
    • Seminal vesicles
    • Testes
  38. Cuff of skin encircling the glans penis
    Prepuce
  39. Connective tissue sheath enclosing the ductus deferens, blood vessels, and nerves.
    Spermatic cord
  40. Trace the pathway of sperm from the testis to the urethra. List these terms in proper order; rete testis, epididymis, seminiferous tubule, ductus deferens.
    Seminiferous tubule -> Rete testis -> Epididymis -> Ductus deferens
  41. How do the scrotal muscles help maintain temperature homeostasis of the testes?
    When the body temperature (or external temperature) is high the scrotum muscles relax allowing the testes to hang lower and farther away from the warmth of the body wall. This causes testicular temperature to drop when the external temperature is cold, the scrotal muscles contract to draw the testes closer to the body wall.
  42. Spongy tissue that is engorged with blood during erection
    Corpus spongionism, or erectile tissue, in the penis
  43. Portion of the duct system that also serves the urinary system.
    Urethra
  44. Structure that provides the ideal temperature conditions for sperm formation.
    Scrotum
  45. Structure removed in circumcision.
    Prepuce
  46. Gland whose secretions contain sugar to nourish sperm.
    Seminal vesicles
  47. Structure cut or cauterized during a vasectomy.
    Ductus deferens
  48. The DNA containing area of a sperm.
    Nucleus
  49. The enzyme-containing sac that aids sperm penetration of the egg
    Acrosome
  50. Metabolically active organelles that provide ATP to energize sperm movement
    Mitochondria
  51. Word Bank: Bulbourethral gland, Ductus
    deferens, Glans penis, Ejaculatory duct, Epididymis, Erectile tissue, Prepuce, Prostate, Urethra, Scrotum, Seminal vesicle, Testis.
  52. Word Bank: Acrosome, Axial filament of tail, Head, Midpiece, Mitochondria, Neck, Nucleus, Tail.
  53. Produces sex cells.
    Meiosis
  54. Growth/developement for zygotes.
    Mitosis
  55. Final product is two daughter cells, each with 46 chromosomes.
    Mitosis
  56. Final product is four daughter cells, each with 23 chromosomes.
    Meiosis
  57. Occurs in all body tissues.
    Mitosis
  58. Occurs only in the gonads
    Meiosis

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