new psych 020 - chapter 3 web diagrams- (brain & nervous system 2007-2008

New psych 020 - chapter 3 web diagrams- (brain & nervous system 2007-2008

Info iconThis preview shows pages 1–15. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: CHAPTER 3 STRUCTURE OF THE NERVOUS SYSTEM THE NERVOUS SYSTEM THE NEURON BRAIN ANATOMY ~ Professor Fazakas-DeHoog lfazakas@uwo.ca STRUCTURE OF THE NERVOUS SYSTEM THE NERVOUS SYSTEM CENTRAL NERVOUS SYSTEM Brain Spinal Cord PERIPHERAL NERVOUS SYSTEM Afferent Pathways Efferent Pathways Somatic Division Autonomic Division Sympathetic Division Parasympathetic Division STRUCTURE OF THE NERVOUS SYSTEM NEURONS DEFINE & LABEL THE FOLLOWING: SOMA DENDRITES AXON SYNAPSE STRUCTURE OF THE NERVOUS SYSTEM NEURONS THE SYNAPSE TERMINAL BUTTON (AXON) POSTSYNAPTIC MEMBRANE (ON DENDRITE OF ANOTHER NEURON) MYELIN SHEATH NODES OF RANVIER NEURAL IMPULSE: ELECTROCHEMICALBEGINNINGS MULTIPLE SCLEROSIS Loss of myelination of neural pathways GREY MATTER- Unmyelinated WHITE MATTER- Myelinated The Cortex NEURAL IMPULSE: THE ACTION POTENTIAL-70 Membrane Potential (mV) Action Potential Threshold-55 Excitatory = depolarization Inhibitory = hyperpolarization Resting Potential THE NEURAL IMPULSE After an impulse passes any point on the axon, the membrane isnt excitable & cant fire an action potential. REFRACTORY PERIOD 1/1000 second Action Potential * Excitatory or Inhibitory SYNAPTIC TRANSMISSION HOW NEURONS COMMUNICATE LOCK & KEY NATURE OF NEUROTRANSMITTERS NEUROTRANSMITTERS THE SPINAL CORD Spinal Cord Brain Nerves CENTRAL NERVOUS SYSTEM BRAIN SPINAL CORD THE SPINAL CORD Duramatter Matter Spinal Flud Cross section of spinal cord THE HIERARCHICAL BRAIN...
View Full Document

Page1 / 33

New psych 020 - chapter 3 web diagrams- (brain & nervous system 2007-2008

This preview shows document pages 1 - 15. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online