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REPRODUCTION (I) (Process of birth (The gametes are released, The gametes…

- - - - In males: Testes. In females: Ovaries
      - Organs that produce gametes
    - - In males: Spermatozoons. In females: ovaries
      - Sexual cells required for reproduction
  - - - Female
        
        Fats are storaged, curves are formed, hips get wider...
      - Male
        
        Voice gets lower, muscles develop, hair grows in different body parts, general growth of the body...
    - - Secondary
        
        Sexual hormones are involved: testosterone and oestrogen
        
        Since puberty
      - Primary
        
        Since embrionary development
        
        At the beginning we are all female
        
        Since you develop in a male or a female
  - - - Is the sexual condition: male and female
    - - Is a natural act between two individuals that feel atraction
- - - - Lack of mobility of spermatozoons
      - Problem with the flow of semen
      - Low amount of spermatozoons
    - - Obstruction in the fallopian tubes
      - Hormone imbalances (FSH, LH, oestrogens, progesterone)
      - Problems in the uterus (sex, the embryo cannot attach)
  - - - Fertilisation occurs naturally
      - It's used in cases of anatomical or functional alteration
      - Consists of placing the sperm from a donor into a women's uterus
    - - The fertilisation of the ova is contained in the semen
      - The transfer of the resulting embryo to the mother's uterus
      - Ova and semen are extracted from a female and a male donor
- - - - Days 8-12: Not fertile but not bleeding
      - Days 13-15: Ovulation and fertile
      - Days 1-7: Menstruation
      - Days 16-28: The follicle is expelled
- - - - The follicles grow up and release oestrogens
      - The uterus become thicker
      - They reach the ovaries
    - - The ovulation is produced
      - The ovule is released and 2 things could happen
        
        A: No fertilisation
        
        The cycle starts again
        
        B: Fertilisation
        
        2: Pregnancy and birth
        
        1: The corpus luteum release oestrogen and progestorene
      - They reach the ovaries