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 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
CENTRAL NERVOUS
SYSTEM
PERIPHERAL NERVOUS
SYSTEM
 The Autonomic Nervous System (ANS) can
be divided into:
 Sympathetic Nervous System
 “Fight or Flight”
 Parasympathetic Nervous System
 “Rest and Digest”
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 contain 2
types of receptors
 Excitatory
 Inhibitory
 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.
 Resting Membrane Potential (-70mV)
 K+, Na+, Ca2+, Cl-
 Inside vs. outside of the membrane
 Selective Permeability
 Electrical Gradient vs. Chemical Gradient
 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.
Nervous%20 system%20%26%20the%20neuron

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

  • 1.
  • 2.  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
  • 3.
  • 5.
  • 6.  The Autonomic Nervous System (ANS) can be divided into:  Sympathetic Nervous System  “Fight or Flight”  Parasympathetic Nervous System  “Rest and Digest”
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.  Basic building blocks of the brain  Parts of the Neuron  Dendrites  Soma (Cell Body)  Axon  Axon Terminal
  • 15.
  • 16.  What do dendrites respond to?  How do dendrites respond?
  • 17.  Contains the nucleus of the neuron  Receives information from dendrites
  • 18.  Conducts information  Can vary in length  Afferent vs. efferent axon  Myelin Sheath  Nodes of Ranvier
  • 19.
  • 20.
  • 21.
  • 22.
  • 23.  Where information is released  Termination of the action potential which may lead to the release of a neurotransmitter
  • 24.  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
  • 25.  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.
  • 26.  Resting Membrane Potential (-70mV)  K+, Na+, Ca2+, Cl-  Inside vs. outside of the membrane  Selective Permeability  Electrical Gradient vs. Chemical Gradient
  • 27.
  • 28.  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.