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? ? ? ? ? ? Label this diagram Neurophysiology

Transcript of ? ? ? ? ? ? What happens at each stage on this graph? 1 23 4.

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Label this diagram

Neurophysiology

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What happens at each stage on this graph?

1 2 3

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Which graph is Depolarization? Which one is Hyperpolarization?

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Which highlighted area is Absolute refractory period?

What is the other period called?

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Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

What is happening at each step?

What is this area called?What kind of channels are these?

What about these?

Voltage gated channels

Chemically gated channels

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1. Which graph represents Excitatory postsynaptic potential(EPSP)?2. Which one is inhibitory postsynaptic potential(IPSP)?

What is EPSP?

What is IPSP?

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Ion ChannelsWhat is the difference

between Chemical gated ion

channelsAnd voltage-gated ion

channels?

Chemical gated ion channels:

Open when the appropriate neurotransmitter binds to the receptor

Open and close in response to changes in membrane voltage

Voltage-gated ion channels

Which picture is represented by each?

Chemical gated ion channels:

Voltage-gated ion channels

Answer

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Matching:Select which one is graded potential

and which one is action potential

1 432

END SLIDE

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1. Location of eventAction potential Graded potential

Cell body and dendrites Axon hillock and axon

back

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2. Distance traveledAction potentialGraded potential

Short distance Long distance

back

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3. Initial eff ect of stimulusAction potential Graded potential

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4. Peak membrane potentialAction potentialGraded potential

back

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The End!!Presentation by:Jessica LongJoselyn CoakleyMarsia Martin

Powerpoint by: Jessica Long

With special thanks to:Human Anatomy and Physiology Eighth Edition

www.myaandp.comDr. Hammoudi

And our wonderful audience!!