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Prenatal Development - Coggle Diagram

- - - - Consists of blastocyst & trophoblast
        
        Blastocyst:
        consist of inner mass of cells that will develop into the embryo
        
        Trophoblast:
        outer layer of cells that provides nutrition and support for embryo
- - - - The blastocyst is a structure formed in the early development of mammals. It possesses an inner cell mass (ICM) which subsequently forms the embryo.
        
        the mass of the cells is called an embryo and three layers of cell is formed.
        
        the three layers
        
        Endoderm is the inner cell, which will develop digestive and respiratory system.
        
        Mesoderm the middle layer which will develop circulatory system, bones, muscles, excretory system and reproductuve system.
        
        Ectoderm is the outer most layer, which will become the nervous system and brain, sensory receptors (ears, nose, eyes, hair and nails)