Embryology

  1. First Week of Development
    1. The Ovarian and Uterine Cycles
      1. Phases of the Ovarian Cycle
        1. Follicular Phase
          1. Ovulation
            1. Luteal Phase
            2. Phases of the Uterine Cycle
              1. Menstrual Phase
                1. Proliferative Phase
                  1. Secretory Phase
                  2. Hormonal Regulation
                  3. Fertilization
                    1. Site of Fertilization
                      1. Transport of Gametes
                        1. Sperm Migration
                          1. Oocyte Transport
                          2. Capacitation of Sperm
                            1. Acrosome Reaction
                              1. Penetration of Corona Radiata
                                1. Penetration of Zona Pellucida
                                  1. Fusion of Oocyte and Sperm Membranes
                                    1. Cortical Reaction
                                      1. Zona Reaction
                                        1. Prevention of Polyspermy
                                          1. Resumption of Meiosis II in Oocyte
                                            1. Formation of Pronuclei
                                              1. Syngamy and Restoration of Diploidy
                                                1. Formation of the Zygote
                                                2. Cleavage of the Zygote
                                                  1. Characteristics of Cleavage
                                                    1. Blastomeres
                                                      1. Compaction
                                                        1. Formation of the Morula
                                                        2. Formation of the Blastocyst
                                                          1. Blastocyst Cavity
                                                            1. Inner Cell Mass
                                                              1. Outer Cell Mass
                                                                1. Hatching from Zona Pellucida
                                                                  1. Preparation for Implantation

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                                                                2. Gametogenesis

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                                                                4. Second Week of Development