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Peripheral Nervous System (PNS) Medications: In a Nutshell (Nursing)

by Rhonda Lawes

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    00:00 Wrapping it up, let's talk about our big concepts from this series.

    00:05 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 nervous system.

    00:15 The peripheral nervous system breaks into two major divisions, the autonomic nervous system and the somatic nervous system.

    00:22 So make sure you can still re-draw those in your notes.

    00:26 The ANS has two other major divisions - the sympathetic and the parasympathetic nervous system.

    00:32 Cholinergic receptors which are muscarinic and nicotinic are mediated by the acetylcholine.

    00:38 Adrenergic receptors, beta-1 and alpha, are mediated by epinephrine, norepinephrine or dopamine.

    00:45 Drugs can be created that can bind to the receptor subtypes and act as an agonist - winner key, or an antagonist, a blocker.

    00:53 Remember, an agonist will make that receptor do what it's intended to do.

    00:57 An antagonist will bind to the receptor but stop the action of the that receptor.

    01:03 Agonist compounds activate the receptor, antagonist compounds block or inactivate the receptor.

    01:10 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.

    01:20 Thank you for watching our video today.


    About the Lecture

    The lecture Peripheral Nervous System (PNS) Medications: In a Nutshell (Nursing) by Rhonda Lawes is from the course Peripheral Nervous System (PNS) Medications (Nursing).


    Included Quiz Questions

    1. Agonists activate the receptors, and antagonists inactivate the receptors
    2. Agonists inactivate the receptors, and antagonists activate the receptors
    3. Agonists cause a slowing or calming effect, and antagonists cause an excitation effect
    4. Agonists cause an excitation effect, and antagonists cause a slowing or calming effect

    Author of lecture Peripheral Nervous System (PNS) Medications: In a Nutshell (Nursing)

     Rhonda Lawes

    Rhonda Lawes


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