Flashcards by , created almost 6 years ago

unit one (homeostasis) Flashcards on Homeostasis, created by kristenfinkas on 10/01/2013.

Created by kristenfinkas almost 6 years ago
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Question Answer
Define homeostasis When all structures function together in the human body to maintain a steady internal environment
What are the 3 components of a homeostatic mechanism? -Receptors -Control centers -Effectors
What is a Receptor? Body structures that monitor information in the environment and send it to the control centers.
What is a Control Center? Areas in the body that receive information from the receptors, process it and signal the effectors.
What are Effectors? Body structures that receive signals from the control centers and produce a response that brings the levels back into their optimal range.
What is negative feedback? The process the body uses to reverse the direction of movement away from homeostasis.
What is Positive feedback? The process the body uses to increase movement away from homeostasis.