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study of normal biological function Physiology
Give examples of Physiology stimulation of appetite, ingestion of food, digestion and absorption, storage of energy sources, and muscle contraction.
a number of organs that perform related functions system
maintaining a dynamic constancy of the internal environment homeostasis
used by the body to compare the normal physiological states with the actual state set points
measure variables such as temperature, pH, oxygen concentration, etc. sensors
where do the signals from the sensors go to be processed? Integrating center
What is the integrating center? Brain
what happens if the deviations are large enough from the sensors? An effector system is activated to bring the system back to normal.
Allows a finer degree of control than what could be achieved by trying one effector on and off. antagonist effectors
Two types of Effectors Intrinsic, Extrinsic
systems built into the organs being regulated intrinsic
systems that are based outside of the organs being regulated extrinsic
released into the blood and bind to receptors on the target tissues hormones
released onto receptors from nerves that innervate the target tissue neurotransmitters
Created by: CountryMomma7