Ch 1.5 Homeostasis Flashcards
(9 cards)
1
Q
Homeostasis
A
The existence and maintenance of a relatively constant environment within the body
2
Q
Variables
A
Changes in internal body conditions, their values are not constant
3
Q
Feedback loops
A
Allows for a process to be regulated by the outcome (regulates homeostasis)
4
Q
Receptor
A
Modernist the value of a variable by detecting stimuli
5
Q
Control center
A
Determines the set point for the variable and receives input from the receptor about the variable
6
Q
Effector
A
Generates the response that adjusts the value of a changed variable
7
Q
Stimulus
A
A changed variable
8
Q
Negative feedback
A
When any deviation from the set point is made smaller or is resisted
9
Q
Positive feedback
A
Occurs when a response to the original stimulus results in the deviation from the set point becoming even greater
