Wrapping it up, let's talk about
our big concepts from this series.
The nervous system has
two major divisions,
you've got the central nervous system, right down
the middle, that's the brain and spinal cord
and the peripheral
The peripheral nervous system
breaks into two major divisions,
the autonomic nervous system and
the somatic nervous system.
So make sure you can still
re-draw those in your notes.
The ANS has two other major divisions - the
sympathetic and the parasympathetic nervous system.
Cholinergic receptors which are muscarinic and
nicotinic are mediated by the acetylcholine.
Adrenergic receptors, beta-1 and alpha, are mediated
by epinephrine, norepinephrine or dopamine.
Drugs can be created that can
bind to the receptor subtypes
and act as an agonist - winner
key, or an antagonist, a blocker.
Remember, an agonist will make that
receptor do what it's intended to do.
An antagonist will bind to the receptor
but stop the action of the that receptor.
Agonist compounds activate the receptor, antagonist
compounds block or inactivate the receptor.
So by knowing the location and receptor response
to the cholinergic and adrenergic receptors
is critical to your understanding of
the peripheral nervous system drugs.
Thank you for watching
our video today.