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Reproduction in Humans - Coggle Diagram

- - - - Made in ovary
      - Parts
        
        Layer of jelly
        
        Prevents from too many sperm getting in
        
        Cell surface membrane
        
        To control what passes through it
        
        Cytoplasm
        
        Contains yolk, an energy store
        
        Nucleus
        
        Contains chromosomes
  - - - Made in testes
      - Parts
        
        Head
        
        Holds the nucleus
        
        Nucleus
        
        Contains chromosomes
        
        Middle piece
        
        Contains mitochondria for energy to swim
        
        Acromosome
        
        Contains enzymes which breaks down the jelly surrounding egg cell
        
        Tail
        
        For movement
- - - - Mature follicle bursts and releases an egg into the oviduct
    - - A sperm nucleus fuses with the egg nucleus forming a zygote
    - - Forms a ball of cell after a few hours
    - - Formed as the cells of the ball keep dividing as it goes down he oviduct
    - - The embryo sinks into the soft lining of uterus