Biology: hormones and homeostasis

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iGCSE Biology Mind Map on Biology: hormones and homeostasis, created by cleo.moseley9 on 02/19/2015.
cleo.moseley9
Mind Map by cleo.moseley9, updated more than 1 year ago
cleo.moseley9
Created by cleo.moseley9 about 11 years ago
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Resource summary

Biology: hormones and homeostasis
  1. hormones
    1. testosterone
      1. testes
        1. controls male puberty, development of sperm
      2. oestrogen
        1. ovaries
          1. controls female puberty, controls menstrual cycle
        2. insulin
          1. pancreas
            1. controls blood sugar levels
              1. keeps it down
          2. adrenaline
            1. adrenal glands
              1. controls body for action
                1. skin gets pale
                  1. rapid breath and heart rate
                    1. increase in energy
                      1. o2 and glucose intake increases and it it diverted to muscles
                    2. blood diverted from digestive system
                      1. glycogen in muscles are converted to glucose
                    3. chemical messengers produced by endocrine glnds
                      1. transported via blood to target organs
                    4. homeostasis
                      1. maintenance of constant internal environment
                        1. glucose, water and temperature must be kept the same
                        2. normal blood glucose
                          1. eat meal
                            1. pancreas releases insulin
                              1. glucose regulation, liver converts glucose to glycogen
                                1. normal blood glucose
                            2. exercise
                              1. pancreas releases glycogen
                                1. liver converts glycogen to glucose
                                  1. normal blood glucose
                            3. negative feedback
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