Psych020Chapter3(Brain.Nervous.System)

Psych020Chapter3(Brain.Nervous.System) - CH APTER 3...

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Unformatted text preview: CH APTER 3 STRUCTURE OF THE NERVOUS SYSTEM THE NERVOUS SYSTEM THE NEURON BRAIN ANATOMY ~ Pr ofessor Fazakas-DeH oog lfazakas@uwo.ca STRUCTURE OF TH E NERVOUS SYSTEM TH E NERVOUS SYSTEM CENT RAL NERVOUS SYSTEM Br ain Spinal Cor d ERI PH ERAL NERVOUS SYSTEM Affer ent Pathways Effer ent Pathways Somatic Division Autonomic Division Sympathetic Division Par asympathetic Division STRUCTURE OF TH E NERVOUS SYSTEM NEURONS DEFINE & LABEL THE FOLLOWING: SOMA DENDRITES AXON SYNAPSE STRUCTURE OF TH E N ERVOUS SYSTEM NEURONS THE SYNAPSE TERMINAL BUTTON (AXON) POSTSYNAPTIC MEMBRANE (ON DENDRITE OF ANOTHER NEURON) MYELIN SHEATH NODES OF RANVIER N EURAL I MPULSE: ELECTROCH EMI CALBEGI N N I N GS MULTIPLE SCLEROSIS Loss of myelination of neural pathways GREY MATTER- Unmyelinated WHITE MATTER- Myelinated The Cortex N EURAL I MPULSE: TH E ACTI ON POTEN TI AL-70 Membrane Potential (mV) Action Potential Threshold-55 Excitatory = depolarization Inhibitory = hyperpolarization Resting Potential TH E NEURAL I M PULSE...
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This note was uploaded on 11/03/2009 for the course PSYCH 1000 taught by Professor Atkinson during the Fall '09 term at UWO.

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Psych020Chapter3(Brain.Nervous.System) - CH APTER 3...

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