Transcript The Nervous System

The Nervous System
At this station you will:
-Learn the 3 main functions of the Nervous System
-Learn the main parts of the nervous system
-Determine how a reflex works
-Do an activity to measure your reaction rate
Functions
Parts
Reflex
Activity
Functions of the Nervous System
1.
2.
3.
Receives InformationResponds Information –
Maintains Homeostasis –
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Beginning
Parts
Reflex
Activity
Parts of the Nervous System
Include information on this slide about :
•Neurons
•Nerve Impulse
•Central Nervous System
•Brain
•Spinal Cord
•Peripheral Nervous System
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Beginning
Functions
Reflex
Activity
Reflex
• Reflex
Information
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Beginning
Functions
Parts
Activity
Activity #1 –
How fast can you react?
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Partner #1 stands with his/her forearm
on the table with only the hand
hanging off the side with thumb and
index finger ready to pinch the meter
stick.
Partner #2 holds the meter stick
where the bottom of the ruler (0 cm) is
even with the first person’s fingers.
Partner #2 drops the meter stick
without warning and Partner #1 tries to
catch it as quickly as possible.
Record the distance the ruler dropped
on your paper to the nearest
centimeter.
Repeat 3 times for each partner for
each hand. Find the average.
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Beginning
Functions
Parts
Reflex
Next Activity
Activity #2:
Can You Keep From Reacting?
• Can you make yourself not blink? To answer this question, try the
following activity.
– Put on safety goggles.
– Have your partner stand across from you and gently toss a
cotton ball toward your goggles 10 times. Your partner should
not give you any warning before tossing the cotton balls.
– Count the number of times you blink and the number of times
you are able to keep from blinking.
• Interpreting Data Compare the two numbers. Why is blinking
considered a reflex?
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Beginning
Functions
Parts
Finish
Reflex
Activity #1
Clean Up the Station
• Reset the station’s supplies.
• Go back to the first slide so the next group
can begin.
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Beginning
Functions
Parts
Reflex
Activity