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Reproductive System (Hormones (Menstrual Cycle (follicular stage (FSH…

- - - - FSH triggers increase in estrogen
      - FSH and LH travel from brain through blood to ovaries
      - 1 follicle has all the nutrients the rest are polar bodies
    - - starts day 14
      - rise in estrogen increases LH
        
        1 egg is released
      - increase in cervix mucus
        
        if intercourse happens during ovulation mucus helps sperm fertilize egg. (increases chances of pregnancy)
    - - empty follicle becomes corpus lutuem
      - if egg is fertilized then embryo travels to uterus though fallopian tube
- - - - stops at prophase 1 until puberty
    - - Inhibin is released to prevent to many follicles
  - - - chromosomes replicated
    - - replicated chromosomes line up
    - - chromosomes are pulled apart (crossing over)
    - - 2 new daughter cells are formed (haploid)
    - - replicating cells made from meiosis 1 (mitosis)
- - - - make sperm
    - - transport semen out
    - - provides fluid (semen) for sperm before ejaculation
    - - holds testes outside of body to keep cool
    - - provide fructose to sperm so it can have energy to swim
    - - transports and matures sperm
    - - pump semen to penis during arousal
    - - transports mature sperm to urethra
  - - - make eggs
      - release estrogen and progesterone
    - - arousal
    - - protect external reproductive organs
    - - connects vagina, urethra, uterus
    - - sperm enters, babies leave
    - - hold baby
    - - opening for baby to come out
    - - mucus fluid
    - - transport eggs to uterus
        
        site of fertilization
- - - - teeth and fingerprints formed
      - muscles formed
        
        baby can move hands and feet
        
        if 1st pregnancy mother wont feel the baby kick
      - intestines and liver are formed
        
        baby can make red blood cells to replace yolk sac
    - - cartilage hardens to bone
      - nervous system expands to rest of body (matures)
      - smell, taste, hearing, touch kick in
      - mother can feel baby movements
    - - baby experiments sense of touch
        
        responds to mother touching womb
      - lungs form bronchioles
        
        practices breathing
      - taste buds formed
      - 24 weeks baby can survive outside of mother w/ significant medical help (absolute earliest premature birth)
    - - neurons start firing
      - can open eyes to see the light shining through womb
      - turns upside down to prepare for birth
        
        babies mostly come out head first
    - - uterine muscles contract (painful)
      - muscles push down to move baby towards cervex
      - mucus plug breaks
        
        water breaks, fluid is trickled or rushed out
      - cervix opens, 4 meters=active labor, 8 is transition (most painful)
      - placenta comes out last
      - 10 meters mom has to push
  - - - circulatory is formed afterwards (heart starts beating)