Autonomic nervous system | Organ Systems | MCAT

No video

Autonomic nervous system | Organ Systems | MCAT | Khan Academy

Рет қаралды 715,196

Күн бұрын

Created by Matthew Barry Jensen.
Watch the next lesson: www.khanacademy.org/test-prep...
Missed the previous lesson? www.khanacademy.org/test-prep...
MCAT on Khan Academy: Go ahead and practice some passage-based questions!
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan Academy’s MCAT channel: / @khanacademymcatprep
Subscribe to Khan Academy: kzfaq.info_...

Пікірлер: 101

@fozlesgitit1568 2 жыл бұрын

Just started learning about the nervous system for psychology, i know this is aimed at more medical students but wow this taught me more in 11 minutes than my course has in 3 days! feeling confident now i can do more thorough research

@Potencyfunction Жыл бұрын

It is aimed to understand mental disorders especially in neuropsykologi.

@paulchkreba8540 8 жыл бұрын

This guy is such a great teacher!! Love his videos

@davidgonzalez9347 9 жыл бұрын

Nice video. He sounds a little bit like Cleveland in family guy :o

@alimbo9436 7 жыл бұрын

This teaches me not to read comments before finishing the video, now I can't keep focus!

@alisiayoung5796 6 жыл бұрын

I know right!!

@alisiayoung5796 6 жыл бұрын

Do you know how many times I needed to restart the video? :P

@UFCMania155 3 жыл бұрын

South Park is 1000 times better though

@chynalove954 2 жыл бұрын

😂 facts...Now there is no way that I can't hear that lol

@Amy-cb2vt 7 жыл бұрын

This clarified the PNS and SNS soooo much. Thanks a ton!

@MittenMom 9 жыл бұрын

This was helpful! I like the term rest and digest..helped things click for me. Thank you!

@patrykw1047 9 жыл бұрын

You should have 1,000,000,000,000,000,000,000 subscribers. You are amazing

@ahmadjan6070 9 жыл бұрын

Patryk wasniewski ok

@patrykw1047 9 жыл бұрын

Yep

@ahmadjan6070 9 жыл бұрын

Patryk wasniewski alright

@aboyd144 5 жыл бұрын

I appreciate you being so organized

@JacksonReynolds 9 жыл бұрын

Good overview, but it would have been nice to have at least touched on the different neurotransmitters specifically associated with the steps of transmission along each division of the system (e.g. metabotropically active muscarinic AChRs receiving ACh released by efferent postganglionic depolarization events in the PNS).

@94HopeRemains 7 жыл бұрын

Jackson Reynolds I was thinking just the same. I found it well explained but largely superficial. I do hope they will publish more in-depth videos

@Prismarine_Man Жыл бұрын

Thank god I found this channel, it saved my day.

@amygruber3625 10 жыл бұрын

Thank you! This makes so much more sense now :)

@altair2594 9 жыл бұрын

sir u are awesome.. i couldnt understand anything til now.. thnx alot!!

@vivianliu1931 9 жыл бұрын

You are a life saver!! Thanks for the lecture

@musiccolormedicineman4306 7 жыл бұрын

You're a great teacher. Thank you.

@elifut79 10 жыл бұрын

Fantastic! Great video! Love the simplicity of the subject, yet informative.

@cidv 5 жыл бұрын

I had to search intestines on merriam bc he said it too many times and got it stuck in my head lol I don’t think I’ll forget this 😂 Great video!! Thanks!!

@TheAalia03 9 жыл бұрын

Thanks helped a lot

@Ivolution367 10 жыл бұрын

Oooo maaan, finally! Thank youuu!!!

@christinevakas92 2 жыл бұрын

Thank you - that was well explained with great clear visuals.

@pradeeprathnayake7761 10 жыл бұрын

Excellent lecture. Thank you very much.

@simas768 9 жыл бұрын

That was very helpful. Thank you :)

@ClassPunkOnRumbleAndSubstack 8 жыл бұрын

When you combine some of the stuff around kundalini theories with the parasympathetic nervous system there's some correlation going on.

@mousumifranks901 4 жыл бұрын

Excellent! Thank you so much!

@butheinaali5673 9 жыл бұрын

Thank you soooo much. . You helped a lot

@CaptainChrysilla 9 жыл бұрын

Bless you guys

@user-jv2wu5zu7p 2 жыл бұрын

أفضل دكتور يدرس مر علي You are the best teacher i have been watching

@gourabpan9667 8 жыл бұрын

Very Helpful. Thanks :)

@breayonnapearson2596 9 жыл бұрын

awesome summary. thnx.

@bigmofficialchannal1 9 жыл бұрын

A very big thanks ^^

@zahranajirad475 8 жыл бұрын

I liked it a lot!

@inesabreu533 7 жыл бұрын

great video!!!

@bohemianhippee 9 жыл бұрын

You f&$@ing rock. Thanks for this, man!

@MsElina28 2 жыл бұрын

It's important to say that autonomic system consists of three main parts: somatic afferent pathway, central nervous system integrating complex and efferent pathway (that consists of parasympathetic and sympathetic pathways). At first I understood the begining of the video as if the autonomic nervous system consists only of efferent pathways and it's false. (source of my info : "an overview of the autonomic nervous system" PubMed)

@mohamedesam2024 8 жыл бұрын

Thank u ❤️

@MrCrzymich 8 жыл бұрын

IntestineeeeeeeZZzz

@alisiayoung5796 6 жыл бұрын

@zack_120 3 жыл бұрын

Intest[ai]ne makes me agitated 🤣

@charlieleonardo 8 жыл бұрын

Great!

@seoseo7406 10 жыл бұрын

Finally...!

@cheyprism5961 10 жыл бұрын

You don't even have to take notes. He took the liberty of writting them for you! Thanks guy! That's One flashcard down...

@dinosaurtattoo 10 жыл бұрын

It's not an excuse to get lazy

@cheyprism5961 10 жыл бұрын

Aw man! Can't ever get a break. Tis true though

@joeladam8541 7 жыл бұрын

Thank you.

@anonvlogs281 7 жыл бұрын

thank you for nice video

@user-he9zn7qe5u 4 жыл бұрын

This video answered a lot of Q were in ma mind

@aaronjackson2304 10 жыл бұрын

Well done

@VickiBee 9 жыл бұрын

My mind was boggled when I first started learning this, and that was as an EMT-B, the first level of entering into EMS. I had all kinds of trouble remembering that afferent means 'to' and efferent means 'away from' until I could recall they were talking about the brain as opposed to the ANS when efferent means it's coming TO the nerves and afferent means it's going away from it.

@missphysician9543 7 жыл бұрын

Vicki Bee remember the term SAME...sensory for afferent...motor for efferent

@nooralnoori3334 7 жыл бұрын

Thank you

@bizmarksdad2911 7 жыл бұрын

Great video, but intesTINEs... killing me!

@monr.8253 7 жыл бұрын

Mark Harrison SAME HERE! 😭😂😂

@Monica-hr1qx 3 жыл бұрын

omg! I could not focus on anything else except the intesTINES!!!

@leilaaryan1575 2 жыл бұрын

another teaching hero

@topgurl9313 6 жыл бұрын

Feels like I'm listening to Dax Shepard lol. Thanks anyway

@stephenlentsa7479 6 жыл бұрын

How does the concept of chemical mediators in neurotransmission work, I mean the acetylcholine and noradrenaline?

@richsequeiros-peggs8260 10 жыл бұрын

The autonomic nervous system involves afferent neurons also surely?

@Grimething 9 жыл бұрын

Don't confuse the lecture please

@Potencyfunction Жыл бұрын

Dear idiot there is CNS and PNS. CNS is your stupid brain and the Spine and PNS is the Somatic and Autosomatic explained above in the video. What is it you dont understand, is one of your synpses problem perhaps? Damaged neurons from birth? What was your apgar score at birth-ask your mom perhaps she knows about the mental disorders from birth.

@tfoprincess 6 жыл бұрын

while he said e-fer-ent, I was just saying eff-er-ent just to annoy myself. Very helpful and interesting video btw.

@modvs1 9 жыл бұрын

Is computationalism reserved strictly for (personal level) cognitive activity or does computation happen in the autonomic systems?

@s.slachure1502 6 жыл бұрын

What software r u using?

@garry8935 8 ай бұрын

brilliant

@SteveWood505 9 жыл бұрын

you state that PNS activation of the heart causes the heart is "pumping less hard and less often". My understanding is that the PNS innervates the nodes but not the ventricle. So the cardiac output goes down because heart rate goes down, but not inotropic effect.

@jeanettemccalip2378 3 жыл бұрын

Can you please tell me where to find those images you have of the SNS and PNS?

@miloudshami3779 3 жыл бұрын

thank u

@bjarbj944 9 жыл бұрын

THANK YOU THANK YOU THANK YOU

@TheFunky57 5 жыл бұрын

Great video, but unfortunately largely insufficient even at the paramedic level. Would have been nice to talk about neurotransmitters in more detail.

@ImJBMMFAN 9 жыл бұрын

I'm kind of curious why PNS has longer pre-synapse neuron. What is the reason behind that? Is it about how it functions? And about the difference between their neurotransmitter (acetylcholine and norepinephrine). Why are they different? If anyone can give me answers, that would be awesome. Thanks!

@hindmj2632 9 жыл бұрын

ill tell you what ive read, since PNS has long pre, it has short post, so the post fibers are not numerous and diverging like in SNS, which is good, we dont want generalized stimulation in PNS like in SNS, in PNS it can be fatal if its generalized stimulation. Makes sense ?

@ImJBMMFAN 9 жыл бұрын

I get the numerous and diverging ends but still don't get idea of SNS has generalized stimulation. Sorry if I seem hard to understand hahaha. Thank you :)

@bea091894 10 жыл бұрын

intestines hahaha

@Grimething 9 жыл бұрын

lol why did I have to read this comment now am finding it hard to concentrate on the lecture all am doing is listening for when he says intestines :,,,D

@munir55 9 жыл бұрын

Grime thing I dont get it whats funny

@roseannarabia6461 2 жыл бұрын

Please forgive my ignorance on this topic, this is the first time I've learned about these two systems. I'm curious, I am diabetic and overweight, would it be best if I eat breakfast and rest a certain amount of time before doing any kind of cardio exercise and then wait for some time before eating again? It seems that if I eat and then immediately workout that it would be counterproductive.

@sandtx4913 Жыл бұрын

Go to channels of dr. Eric Berg, dr. Jason Fung, dr. Ken Berry, dr. Sten Ekberg, dr. Mindy Pelz. They provide a lot of information on how to heal diabetes.

@roseannarabia6461 Жыл бұрын

@@sandtx4913 Thank you, I'll do that.

@blueworldadam 6 жыл бұрын

omfg i am at my 6 th year in medical school and i found this helpful !!! :P i am wrong ?

@paucceri 8 жыл бұрын

good video but the guy's vocal fry gets pretty annoying. not very hard to get rid of, and its not something you'd expect from a producer as established as khan.

@kune2327 3 жыл бұрын

'S' N S - 'Stress'

@magic2066 9 жыл бұрын

nice thx

@thepun5vrv831 4 жыл бұрын

Whole lecture from 10 min 🤣🤣

@kema4184 4 жыл бұрын

Not good for LPN's only if your in a RN program I guess, he gets too in debt. I rather watch crash course.

@axramsta Жыл бұрын

ANS and PNS?!?

@mintgreen851 8 жыл бұрын

What is that voice!!!but the video is nice

@justinmacmillan2191 7 жыл бұрын

mint green sounds like Bert from sesame Street or squidward

@joeladam8541 7 жыл бұрын

instead of criticizing say thank you.

@noel1582 6 жыл бұрын

I think 'Matthew' should watch this video. Matthew 6:25: “Therefore I tell you, do not be anxious about your life, what you will eat or what you will drink, nor about your body, what you will put on. Is not life more than food, and the body more than clothing?" Who is Matthew? The Bible editor? 1) To think about what we will eat or what we will drink is not 'anxiety', but it is useful for healthy life. 2) 'life' and 'food' are not things to be compared. To take food is a healthy thing to the life. 3) 'body' and 'cloth' are not things to be compared. To put on good cloth is a healthy thing for the body. 4) If Matthew will not agree with 1) to 3), he will be anxious about his life and his body.