Spermatogenesis

Cards (16)

  • Spermatogenesis - or simply sperm production
  • Spermatogenesis - begins during puberty and continues throughout life
  • What part of the reproductive system does the sperm formed?
    Seminiferous Tubules
  • Spermatogonia - a primitive stem cells found in the periphery of each tubule
  • Follicle-Stimulating Hormone - a tropic hormone that targets the testes and stimulates sperm production
  • What type of stem cells produce after each division of a spermatogonium?
    Type A daughter cells, Type B daughter cells
  • Type A cells - remain at the tubule periphery to maintain the stem cell population
  • Type B cells - gets pushed toward the tubule lumen, destined to become sperm cells
  • Primary Spermatocyte - rises from type B cells, destined to undergo meiosis and form four sperm
  • Meiosis - a special type of nuclear division that occurs only in the gonads
  • Spermatids - the gametes in the spermatogenesis
  • Zygote - when a sperm and an egg unite to form a fertilized egg
  • Spermiogenesis - the last stage of sperm development where the excess cytoplasm of the spermatid is stripped aways and a tail is formed
  • What are the three regions of the fully formed sperm?
    Head, Midpiece, Tail
  • Acrosome - found anterior to the nucleus and is helmetlike, which is produced by the Golgi apparatus
  • Filaments - form the long tail, arise from centrioles in the midpiece