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Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
Nervous%20 system%20%26%20the%20neuron
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Nervous%20 system%20%26%20the%20neuron

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  • 1.  Introduction to the nervous system  Central vs. peripheral nervous system ▪ Autonomic vs. somatic nervous system  Components of the nervous system  Glia  Neuron ▪ Parts of a neuron  Action potential
  • 2. CENTRAL NERVOUS SYSTEM PERIPHERAL NERVOUS SYSTEM
  • 3.  The Autonomic Nervous System (ANS) can be divided into:  Sympathetic Nervous System  “Fight or Flight”  Parasympathetic Nervous System  “Rest and Digest”
  • 4. NEURON GLIA
  • 5.  Basic building blocks of the brain  Parts of the Neuron  Dendrites  Soma (Cell Body)  Axon  Axon Terminal
  • 6.  What do dendrites respond to?  How do dendrites respond?
  • 7.  Contains the nucleus of the neuron  Receives information from dendrites
  • 8.  Conducts information  Can vary in length  Afferent vs. efferent axon  Myelin Sheath  Nodes of Ranvier
  • 9.  Where information is released  Termination of the action potential which may lead to the release of a neurotransmitter
  • 10.  After the electrical impulse reaches the axon terminal, this information may be passed onto the next neuron.  Neurons contain 2 types of receptors  Excitatory  Inhibitory
  • 11.  A nerve impulse is the electrical message that is transmitted down the axon of a neuron.  Conducting an electrical impulse or action potential means conducting information within a neuron.
  • 12.  Resting Membrane Potential (-70mV)  K+, Na+, Ca2+, Cl-  Inside vs. outside of the membrane  Selective Permeability  Electrical Gradient vs. Chemical Gradient
  • 13.  Voltage-gated vs. Ligand-gated Ion Channels  The all-or-none law states that the amplitude and velocity of an action potential are independent of the intensity of the stimulus that initiated it.  Action potentials are equal in intensity and speed within a given neuron.

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