Transmission of Nerve Nerve Impulses
Published on Jan 08, 2019
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PRESENTATION OUTLINE
6.2-Transmission of Nerve Impulses
J.Carson, RNC
Review
What do you remember from last week?
PNS-2 parts
ANS & SNS ( auto-HT/M/G) ( Soma-Skeletal)
ANS-2 parts?
PaNS & SyNS ( Rt Involuntary) ( High Alert)
ANS-functions?
PaNS & SyNS ( Rt Involuntary) ( High Alert)
ANS-2 parts
PaNS & SyNS ( Rt Involuntary) ( High Alert)
Neuroglia-astrocytes,glia,ependymal,oligodendrocytes
PNS>Schwann & Satellite
Neuron?
4 parts????
Dendrites/Axon/Axon Terminal/Cell Body
Axon Bundle
Nerve!!!!!
Nerves
Long or Short
Frequencey
Distinct & Varies
Holy Moly -I'm on Fire!
Turn up that thermostat!!!!
Action Potential
What's all the Buzz about!
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Like Metal = Low
Resistance
Like Metal = Low
Resistance
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Resting Membrane Potential
-70mV
Where do these charges come from ???
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Sodium Potassium Pump
Protein straddles Neuron
2 K to 3 Na
Positive Outside the Neuron
Electrochemical Gradient
NATURE HATES GRADIENTS
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-50 Mv
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MEMBRANE POTENTIAL
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DEPOLARIZED
+ 40 Mv
ACTION POTENTIAL
IN ACTION
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-75Mv
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-50Mv +40 Mv
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MYELIN SHEATHS
CONDUCT FASTER
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GROUP 1
TO TABLE 1 FOR REFLEX STIMULATION
GROUP 2
TABLE 2- MYELIN SHEATH SIMULATION
GROUP 3
ICE & TOOTHPICK STATION
Reflexes
somatic/autonomic
Link to Video: http://www.youtube.com/v/2GKiB88G--U
Link to Video: http://www.youtube.com/v/eYquxPVE_MI
