 Introduction to the nervous system
 Central vs. peripheral nervous system
▪ Autonomic vs. somatic nervous system
 Comp...
CENTRAL NERVOUS
SYSTEM
PERIPHERAL NERVOUS
SYSTEM
 The Autonomic Nervous System (ANS) can
be divided into:
 Sympathetic Nervous System
 “Fight or Flight”
 Parasympathet...
NEURON GLIA
 Basic building blocks of
the brain
 Parts of the Neuron
 Dendrites
 Soma (Cell Body)
 Axon
 Axon Terminal
 What do
dendrites
respond to?
 How do
dendrites
respond?
 Contains the
nucleus of the
neuron
 Receives
information from
dendrites
 Conducts information
 Can vary in length
 Afferent vs. efferent axon
 Myelin Sheath
 Nodes of Ranvier
 Where
information is
released
 Termination of
the action
potential which
may lead to the
release of a
neurotransmitter
 After the electrical
impulse reaches the
axon terminal, this
information may be
passed onto the
next neuron.
 Neurons c...
 A nerve impulse is the electrical message
that is transmitted down the axon of a
neuron.
 Conducting an electrical impu...
 Resting Membrane Potential (-70mV)
 K+, Na+, Ca2+, Cl-
 Inside vs. outside of the membrane
 Selective Permeability
 ...
 Voltage-gated vs. Ligand-gated Ion Channels
 The all-or-none law states that the amplitude
and velocity of an action po...
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

  1. 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. 2. CENTRAL NERVOUS SYSTEM PERIPHERAL NERVOUS SYSTEM
  3. 3.  The Autonomic Nervous System (ANS) can be divided into:  Sympathetic Nervous System  “Fight or Flight”  Parasympathetic Nervous System  “Rest and Digest”
  4. 4. NEURON GLIA
  5. 5.  Basic building blocks of the brain  Parts of the Neuron  Dendrites  Soma (Cell Body)  Axon  Axon Terminal
  6. 6.  What do dendrites respond to?  How do dendrites respond?
  7. 7.  Contains the nucleus of the neuron  Receives information from dendrites
  8. 8.  Conducts information  Can vary in length  Afferent vs. efferent axon  Myelin Sheath  Nodes of Ranvier
  9. 9.  Where information is released  Termination of the action potential which may lead to the release of a neurotransmitter
  10. 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. 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. 12.  Resting Membrane Potential (-70mV)  K+, Na+, Ca2+, Cl-  Inside vs. outside of the membrane  Selective Permeability  Electrical Gradient vs. Chemical Gradient
  13. 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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