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2073554
Biology: hormones and homeostasis
Description
iGCSE Biology Mind Map on Biology: hormones and homeostasis, created by cleo.moseley9 on 02/19/2015.
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biology
igcse
Mind Map by
cleo.moseley9
, updated more than 1 year ago
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Created by
cleo.moseley9
about 11 years ago
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Resource summary
Biology: hormones and homeostasis
hormones
testosterone
testes
controls male puberty, development of sperm
oestrogen
ovaries
controls female puberty, controls menstrual cycle
insulin
pancreas
controls blood sugar levels
keeps it down
adrenaline
adrenal glands
controls body for action
skin gets pale
rapid breath and heart rate
increase in energy
o2 and glucose intake increases and it it diverted to muscles
blood diverted from digestive system
glycogen in muscles are converted to glucose
chemical messengers produced by endocrine glnds
transported via blood to target organs
homeostasis
maintenance of constant internal environment
glucose, water and temperature must be kept the same
normal blood glucose
eat meal
pancreas releases insulin
glucose regulation, liver converts glucose to glycogen
normal blood glucose
exercise
pancreas releases glycogen
liver converts glycogen to glucose
normal blood glucose
negative feedback
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