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Reproduction & Embryology

Reproduction & Embryology. Chapter 46 and 47. Asexual Reproduction. Fission Fragmentation and regeneration Budding Parthenogenesis. Sexual Reproduction. Hermaphroditism – continual Hermaphroditism - sequential. Animal Reproduction, continued. Fertilization: internal vs. external

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Reproduction & Embryology

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  1. Reproduction & Embryology Chapter 46 and 47

  2. Asexual Reproduction • Fission • Fragmentation and regeneration • Budding • Parthenogenesis

  3. Sexual Reproduction • Hermaphroditism – continual • Hermaphroditism - sequential

  4. Animal Reproduction, continued • Fertilization: internal vs. external • Environmental vs. courtship • Oviparous vs. viviparous • Monotreme, marsupial, & eutherian mammals • Role of pheromones

  5. The Female Reproductive System

  6. Oogenesis • Controlled by gonadotrophic hormones: • FSH • LH • Estrogen • Progesterone

  7. Types of Ovulation • ReflexogenicOvulators • Periodic Ovulators • Short Periodic Ovulators

  8. Male Reproductive System

  9. Spermatogenesis • In seminiferous tubules • FSH stimulates Sertoli cells • LH stimulates Leydig cells

  10. Fertilization (Fallopian Tubes)

  11. Blocks to Polyspermy • Fast block – Change in polarization • Slow block – Signal transduction pathway

  12. The Gray Crescent

  13. Cleavage - Morula

  14. Blastula • Inner mass = future embryo • Trophoblast = future placenta, secretes HCG

  15. Gastrulation • Protostomes vs. deuterostomes • Dorsal lip of the blastopore

  16. Fate Mapping

  17. Germ Layers & Organogenesis

  18. The Primitive Streak

  19. Apical Ectodermal Ridge (AER)

  20. Zone of Polarizing Activity (ZPA)

  21. The First Trimester

  22. The Second Trimester

  23. The Third Trimester

  24. Labor & Delivery

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