Following events occur in the zygote formed in the week zero of development: Cleavage Approximately 24 hours after fertilization the zygote begins with the first…
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Embryology Week 0: Gametogenesis, Ovulation and Fertilization
Gametogenesis – formation of gametes from primitive germ cells Spermatogenesis, begins at puberty and occurs in seminiferous tubules (spermiogenesis occurs in sertoli cells). One spermatogenesis takes an…
Explore more Embryology Week 0: Gametogenesis, Ovulation and FertilizationGerm Layer Derivatives – Mnemonics
Principle of Germ Layer Segmentation Ectoderm gives further rise to neuroectoderm and neural crest cells. Endoderm remains intact. Mesoderm gives further rise to paraxial mesoderm…
Explore more Germ Layer Derivatives – MnemonicsBranchial Apparatus (Pharyngeal arches and pouches) : Mnemonics
Synonym: Pharyngeal apparatus Mnemonic: CAP covers from out to in Pharyngeal arches are equivalent of gill arches in fish that develop in a cranio-caudal sequence. Derivatives…
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