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16 Cards in this Set

  • Front
  • Back
the exsistance & maintenance of a relatively constant enviornment within the body
body conditions that change over time; a condition such as temperature that can change.
set point
the normal value for a body condition
Normal Range
SLight increases and decreases of a variable around the set point
Homeostasis is the maintenance of a ____ around an ideal _____ or ______ to establish a normal range of values.
normal value
set point
Negative Feedback
Is a mechanism used by the body to regulate most systems. Negative means that any deviation from the set point is made smaller or resisted.
What are the three components of negative feedback
control center
what is the job of the receptor?
to monitor the values of some variable such as blood pressure
what is the job of the control center?
to establish a set point around which the variable is maintained
what is the job of the effector?
to change the value of a variable
A deviation from the set point is called _______?
Explain how negative feedback works
The receptor detects the stimulus and informs the control center, which analyzes the input from the receptor. The control center sends output to the effector, and the effector produces a response, which tends to return the variable back toward the set point.
study the diagram
study the diagram
a deviation from a set point
Give an example of good positive feedback