H i
¾A state of reasonable stable balance between
1.3 Homeostasis
physiological variables
¾The body y py g y ’s ability to physiologically regulate its inner
environment to ensure its stability in response to
fluctuations in the outside environment and the weather
¾ Liver, kidneys, brain (hypothalamus, the autonomic nerve
sy ), stem and the endocrine system help to maintain
homeostasis.