The Nervous System: Peripheral Nervous System (PNS)

From the ProEdify TEAS study guide, this is part of the lesson on the Nervous System.
Besides the brain and spinal cord, there is a vast network of nervous tissue that spans the body. This is called the peripheral nervous system. In this video we discuss the major peripheral nervous system divisions (PNS), sensory neurons vs motor neurons, and also the reflex arc.
Our guided learning app for nursing school is coming in 2021! Please sign up at ProEdify.com to receive updates.
---------------Table of Contents
00:00 - Intro
00:27 - 43 Nerve Pairs
00:45 - Sensory Neurons vs. Motor Neurons (Afferent vs Efferent)
The Reflex Arc, Receptors and Effectors - 1:35
Ganglia - 1:45
Voluntary and Involuntary Reflexes - 2:12
Somatic Nervous System - 2:28
Autonomic Nervous System - 2:56
Sympathetic and Parasympathetic Nervous system - 3:23
---------------Sources Used in this Video
1) Textbook of Basic Nursing (Lippincott's Practical Nursing) 10th Ed.
Rosdahl, Caroline Bunker., and Mary T. Kowalski. "Chapter 19." Textbook of Basic Nursing. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2012. N. pag. Print.
2) Study Manual for the Test of Essential Academic Skills (TEAS)
Wolkowitz, Amanda. "Human Body Science." Study Manual for the Test of Essential Academic Skills (TEAS): Reading, Mathematics, Science, and English and Language Usage. Stilwell, Kan.: Assessment Technologies Institute, 2010. 128. Print.
---------------Media Attributions
1) Derivative work based on:
Anatomy and physiology of animals A reflex arc.jpg
By Ruth Lawson Otago Polytechnic [CC BY 3.0 (creativecommons.org/licenses/b...)], via Wikimedia Commons

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[@medevios8646]

Hey Man, this video was very useful. It helped clear my doubts about the PNS, and fill in the gaps. I now feel more confident about this topic. Great Vid

[@pari020]

Crystal clear explanation in less then 5 minutes. Understood every thing. Thank u

[@wildfoxplaz]

ehh

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[@wildfire7268]

Except for the optic nerve, 11 cranial nerves are PNS.

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[@user-qu4qm7lz4j]

This is very helpful ! Please do a video on the eye and ear

[@ayazghani3517]

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[@xmanvideos3043]

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[@JamesN4790k]

Thank you for teaching me how my pns works... I very much needed to know

[@arthurlee8980]

let me see your PNS ( ͡° ͜ʖ ͡°)

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[@inertialittie5568]

Neat informations good job, however the picture of nerves aren't included... I can understand stand how it works but I must see how it works to fully understand everything.

[@frustratedstudent5710]

Have my 10th bio exam in 1week ,Thank you

[@mohamedaden8637]

Thank you very much sir for this lecture. Sir if a question comes " write down the function of PNS supporting cells? Is it okey to start from the parts of PNS then list the functions of each like you did?

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[@mmmo637]

عاشت ايدك

[@Jahanviiii..]

Cranial and spinal nerves are a part of CNS because nerves are a part of PNS?? pls reply i am quite confused

[@kf-ot6vw]

Cns - brain and spinal Cord
Pns- nerves coming out of brain and spinal cord

[@emmanueloseibempah9670]

Please what is the anatomical difference between peripheral nervous system and autonomic nervous system?

[@odessae.7173]

Don't think about it as 2 separate categories. Instead, look at the autonomic system as a PART OF the PNS that controls the involuntary movement such as heart rate and digestion as described in the video.

[@buddistjejus5825]

Except for the optic nerve , the cranial nerves are a somatic nervous system. Therefore, somatic is not just in the pns.

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[@rafifan7920]

Tysm dear sir...

[@tanimahsan8080]

If the nerves branch out from the spinal cord and brain themselves, then how can they be separate from it?

[@dannichols6261]

@Tanim Ahsan, it's not that the nerves are "separate" but rather that they and the spinal cord and brain are different *parts* of the nervous system, like the arms and the legs are different *parts* of the body, even though they 'branch' out from it. And there are *differences* between the nerves in the peripheral nervous system and the parts of the central nervous system. The brain & spinal cord are both covered in a set of membranes called meninges, but the nerves are not covered by those meninges, but rather by a set of connective tissue called epineurium, perineurium, and endoneurium. That makes them different. In addition, axons in the central nervous system which are myelinated are myelinated by glia called oligodendrocytes and those in the peripheral nervous system which are myelinated are myelinated by glia called Schwann cells, and the manner in which those glia myelinate axons is somewhat different. (Not all axons in both the central nor peripheral nervous system are myelinated, some are not, though at least in the peripheral nervous system the Schwann cells do wrap partially around the unmyelinated axons.)

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[@x-12x-361]

What does innervate the internal organs mean? I looked it up on the internet but I still dont understand. Could someone explain it to me please? I will appreciate it a lot 3:19

[@muhammadabdulrehman5970]

dont know for sure but it means that it connect the internal organs with nerves

[@x-12x-361]

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0:28

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till 2:10

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Malayalam

[@PraveenKumar-pu4nz]

Where is CNS??

[@pijushbhowal6214]

praveen kumar CNS is composed of our brain and spinal cord.

[@dannichols6261]

Since the CNS is the brain and spinal cord, part of it is in the *skull* , and the other part is partly within and protected by the vertebrae of the spine (the *backbone* ) .

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