#biology Created at 050223 # [Anonymous feedback](https://www.admonymous.co/louis030195) # [[Epistemic status]] #shower-thought Last modified date: 2023-02-05 Commit: 0 # Related - [[Physic/Chemistry/Catalyst]] - [[Biology/Embryology cellular automata]] - [[Readwise/Articles/zygote - Somatic Cell - Wikipedia]] - [[Biology/Neuroscience/Neurogenesis]] # TODO > [!TODO] TODO # Embryology Different important steps in embryology: 1. Fertilization: The joining of a sperm and an egg to create a single cell called a zygote. 2. Cleavage: The rapid division of the zygote into smaller cells within the first few days of development. 3. Gastrulation: The process of forming three germ layers (ectoderm, mesoderm, and endoderm) in the embryo. 4. Organogenesis: The formation of organs from the three germ layers. 5. Neurulation: The development of the nervous system from the ectoderm. 6. Morphogenesis: The development of the external shape of the embryo. 7. Fetal Stage: The period of development in the uterus before birth.