neurophysiology of nerve impulses the nervous...

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1 Neurophysiology of Nerve Impulses The Nervous System Function of the Nervous System sensory receptor sensory input integration motor input effector Anatomical Divisions of the Nervous System Central Nervous System (CNS) brain spinal cord Peripheral Nervous System (PNS) cranial nerves spinal nerves Anatomical Divisions of the Nervous System CNS PNS brain spinal cord cranial nerves spinal nerves Typical Motor Neuron cell body dendrite axon axon collateral muscle fibers

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Page 1: Neurophysiology of Nerve Impulses The Nervous …krupp.wcc.hawaii.edu/BIOL100L/powerpoint/neurophysiology.pdf1 Neurophysiology of Nerve Impulses The Nervous System Function of the

1

Neurophysiology ofNerve Impulses

TheNervousSystem

Function of the Nervous System

sensoryreceptor

sensory input

integration

motor inputeffector

Anatomical Divisionsof the Nervous System

Central Nervous System (CNS)brainspinal cord

Peripheral Nervous System (PNS)cranial nervesspinal nerves

AnatomicalDivisions ofthe Nervous

System

CNS PNSbrain

spinalcord

cranialnerves

spinalnerves

Typical Motor Neuron

cell body

dendrite axon

axoncollateral

musclefibers

Page 2: Neurophysiology of Nerve Impulses The Nervous …krupp.wcc.hawaii.edu/BIOL100L/powerpoint/neurophysiology.pdf1 Neurophysiology of Nerve Impulses The Nervous System Function of the

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Myelin Sheath

axon

nodes of RanvierSchwann cells

Neuron Interaction&

Integration

sensoryreceptors

sensoryneuron

interneuronmotorneuron effector

Anatomy of a Nerveaxon

myelin sheathendoneurium

fascicleperineurium

blood vesselsepineurium

Resting Potentialof an Axon

Resting Potentialof an Axon

Resting Potential of an Axon

-70 mV

Page 3: Neurophysiology of Nerve Impulses The Nervous …krupp.wcc.hawaii.edu/BIOL100L/powerpoint/neurophysiology.pdf1 Neurophysiology of Nerve Impulses The Nervous System Function of the

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Depolarizing the Membrane

Depolarizationof the AxonMembrane

ActionPotential

Propagationof the Action

Potential

Stimuli Capable of Elicitingan Action Potential

ElectricalChemical

MechanicalThermal

Neuron-To-NeuronTransmissionsynapses

Page 4: Neurophysiology of Nerve Impulses The Nervous …krupp.wcc.hawaii.edu/BIOL100L/powerpoint/neurophysiology.pdf1 Neurophysiology of Nerve Impulses The Nervous System Function of the

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Synapse

postsynapticneuron

presynapticneuron

synaptic vesiclescontaining

neurotransmitters

synapse

Synapses

Synapses Neurophysiology Apparatus

Eliciting a Nerve Impulse Inhibiting a Nerve Impulse

Page 5: Neurophysiology of Nerve Impulses The Nervous …krupp.wcc.hawaii.edu/BIOL100L/powerpoint/neurophysiology.pdf1 Neurophysiology of Nerve Impulses The Nervous System Function of the

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Nerve Conduction Velocity

Anatomy Unit 1 Notes: Nerve Impulses & Reflexes

MOTOR NERVE CONDUCTION STUDIES - Clinical … · MOTOR NERVE CONDUCTION STUDIES Department of clinical neurophysiology University Hospital ... Björn Falck, Erik Stålberg and Lena

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MOTOR NERVE CONDUCTION STUDIES - Uppsala · PDF fileMOTOR NERVE CONDUCTION STUDIES Department of clinical neurophysiology ... Position of recording electrode: Depends on which branch

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Local Anesthetics - كلية الطب...Local anesthetics • block nerve conduction of sensory impulses and, in higher concentrations, motor impulses from the periphery to the CNS

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E. Propagation of A Nerve Impulse - nerve impulses, (many …shaunab.info/Physiology/Lecture/chap12lectures/Chap12... · 2016-12-21 · E. Propagation of A Nerve Impulse - nerve impulses,

PATHOPHYSIOLOGY OF NERVE · 2019-03-06 · nerve impulses travelling along the nerve fibers slows down. When more and more nerves are affected, the person experiences interference

uomustansiriyah.edu.iq · Web viewPeripheral nerve disorders NERVE STRUCTURE AND FUNCTION Peripheral nerves are bundles of axons conducting efferent (motor) impulses from cells in

Keys to Recovering from Depression...These substances interfere with the nerve impulses when the impulses travel between nerve cells in the positive and negative emotion centers of

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Transmission of Nerve Impulses Honors Anatomy & Physiology for copy

CONTINUOUS CONDUCTION OF IMPULSES IN PERIPHERAL€¦ · CONTINUOUS CONDUCTION OF IMPULSES IN PERIPHERAL MYELINATED NERVE FIBERS BY ¥. LAPORTE* (From the Laboratories …

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The Reflex Arc Nerve impulses follow routes through the nervous system called nerve pathways. Some of the simplest nerve pathways consist of only two neurons

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