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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
6. The Autonomic Nervous System (ANS) can
be divided into:
Sympathetic Nervous System
“Fight or Flight”
Parasympathetic Nervous System
“Rest and Digest”
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.