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Components of a control system
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Ewoma Zino
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Cards (37)
How does a control system in physiology function?
It keeps the body's
internal environment
stable
What are the components of a control system in physiology?
Receptor
: Detects changes in body conditions
Control center: Compares information to
set points
Effector: Responds to restore balance
What are the three key parts of a control system?
Receptor
,
control center
, effector
What happens when you get cold in terms of the control system?
Shivering is triggered to raise
temperature
What role does the control center play in a control system?
It
processes
information
and decides how to
respond
How does a receptor function in a control system?
It detects variations like
temperature
or
blood pressure
What does the receptor communicate with after sensing changes?
The
control center
How does the function of effectors contribute to homeostasis?
Effectors
restore
balance
in the body
How does the control center compare current conditions?
It compares them to the
set points
What is the primary function of negative feedback mechanisms?
To keep the
body
stable
What do sweat glands do when the body gets hot?
They produce sweat to
cool
you down
What happens after the baby is born in positive feedback?
It stops amplifying
contractions
What is the relationship between the receptor, control center, and effector in the body?
Receptor senses
changes
in the
environment
Control center processes this information
Effector
carries out the
response
What are the two types of feedback mechanisms in the body?
Negative
and
positive feedback
What are the key differences between negative and positive feedback mechanisms?
Negative Feedback:
Purpose: Stabilize
body
Response: Counteracts
change
Example: Maintaining
temperature
Positive Feedback:
Purpose:
Amplify
change
Response: Enhances change
Example: Blood
clotting
What is the term for the stable internal environment maintained by a control system?
Homeostasis
Why is a control system compared to a thermostat?
Both maintain
stability
in their environments
What is a control system in physiology?
A system that maintains
homeostasis
How does the control center function in a physiological control system?
It compares detected changes to
set points
What does the effector do in a control system?
It takes action to restore
balance
What is a receptor?
A specialized
cell
or tissue
What is the role of the control center in the body?
Processes information and decides how to
respond
How does the control center interact with the effector?
The control center directs the
effector
to act
How does negative feedback work in the body?
It
counteracts
changes to maintain stability
How does negative feedback function in the body?
It maintains
balance
by opposing changes
What is the primary function of a receptor?
To sense changes in the body's
environment
What is the primary function of positive feedback mechanisms?
To
amplify
changes
What is the main goal of negative feedback mechanisms?
To keep
conditions
just right
What happens when your body gets too hot?
Your body
cools
you down
How does positive feedback work in the body?
It enhances changes to complete
processes
quickly
How does positive feedback work in the body?
It amplifies changes until a
significant
event occurs
What analogy is used to describe the function of a receptor?
Like a thermometer in a
thermostat
What role does the control center play after receiving information from the receptor?
It initiates the necessary
response
What does your body do when it gets too cold?
Your
body warms
you
up
How does a thermostat function as a control system?
Thermometer acts as the
receptor
Thermostat is the
control center
Heater or air conditioner is the
effector
Receptor alerts control center to turn on heater when cold
What are the key differences between negative and positive feedback mechanisms?
Negative Feedback:
Opposes changes
Maintains balance
Examples:
temperature regulation
Positive Feedback:
Amplifies changes
Leads to significant events
Examples:
childbirth
What is the function of the receptor in a control system?
It senses
changes
in your body