?

?

?

?

?

?

Label this diagram

Neurophysiology

What happens at each stage on this graph?

1 2 3

4

?

?

Which graph is Depolarization? Which one is Hyperpolarization?

Which highlighted area is Absolute refractory period?

What is the other period called?

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

?

?

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

What is EPSP?

What is IPSP?

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

Matching:Select which one is graded potential

and which one is action potential

1 432

END SLIDE

1. Location of eventAction potential Graded potential

Cell body and dendrites Axon hillock and axon

back

2. Distance traveledAction potentialGraded potential

Short distance Long distance

back

3. Initial eff ect of stimulusAction potential Graded potential

back

4. Peak membrane potentialAction potentialGraded potential

back

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!!