Spermatogenesis

    Cards (17)

    • Where does spermatogenesis occur?
      In the seminiferous tubules
    • What role do Sertoli cells play in spermatogenesis?
      They support and nourish developing sperm cells
    • How do spermatocytes move during spermatogenesis?
      From the basal compartment to the lumenal compartment
    • What is the final destination of sperm cells after spermatogenesis?
      Into the lumen of the tubule
    • What is spermatogenesis?
      • Process of developing stem cells into spermatozoa
      • Occurs in three phases:
      1. Spermatocytogenesis (Mitosis)
      2. Meiosis
      3. Spermiogenesis
    • What are the three phases of spermatogenesis?
      Spermatocytogenesis, Meiosis, Spermiogenesis
    • What happens during spermatocytogenesis?
      Type A spermatogonia divide mitotically
    • What are Type B spermatogonia also known as?
      Primary spermatocytes
    • What occurs during Meiosis I of spermatogenesis?
      Primary spermatocytes undergo Prophase I to Telophase I
    • What are the cells called after Meiosis I is complete?
      Secondary spermatocytes
    • How many haploid cells are produced after Meiosis II?
      Four haploid cells called spermatids
    • What is spermiogenesis?
      Metamorphosis of spermatids into spermatozoa
    • What structures form during spermiogenesis?
      Acrosome and flagellar apparatus
    • What happens to excess cytoplasm during spermiogenesis?
      It is reduced
    • Where are spermatozoa released after spermiogenesis?
      Into the lumen of the seminiferous tubule
    • What hormones are involved in spermatogenesis?
      • Anterior pituitary hormones
      • Follicle-stimulating hormone (FSH)
      • Luteinizing hormone (LH)
    • What is the role of mitotic proliferation in spermatogenesis?

      To replace spermatogonia and produce Type B