Reflex action (& reflex arc) | Control & Coordination | Biology | Khan Academy
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- Опубліковано 4 жов 2024
- Let's learn the mechanism of reflex actions
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Created by Mahesh Shenoy
Hey, here's a dedicated CBSE course on our website where you can practice all the concepts related to this video and more. And oh, it's always free.
www.khanacademy.org/science/in-in-class-10-biology/in-in-control-and-coordination
Very good very good bahut achcha samjha aapane
Very good explanation 👍👌
One of the best video
Good
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ANSWERS:
1) reflex action are basically involuntary action that are Done after a sudden change in our environment basically called Stimulus that is harmful for our survival .
2) a reflex arc is the connection of sensory, Neurons Relay neurons and motor neurons and The stretching back of hand After stimulus. An arc like structure is obtained So it's called reflex arc
3)Sensory neurons - these are those neurons which converts the stimulus into electric impulses and sends them to spinal cord
Relay Neurons- these are basically the connection between sensory and motor neurons . The neuron that connects sensory with motor neurones are called relay neurons
Motor neurones- these are those neurons which carry information To biseps muscles to contract for our survival .
4) diagram made in Notebook 👍
OP explaination 🙂
thnx for the summary
Bro come again and revise
Revise
Umm...actually it is not necessary that motor neurons must connect to the biscep only..u can define'em as
Those neurons that are connected with the effector muscle and yeah you can give example of the biscep muscle☺
WAS JUST TRYNA CORRECT THE MISTAKE ..NOT OFFENDING☺
ANYWAYS THANK YOU FOR THE DEFINITIONS🙇
@@kookbaring4328 thanks i got what you wanted to convey I'll correct it .
🙌🙂
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What u want to say then 😅
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Sir,
My daughter understood it very well.
You taught in such a way that she was able to understand at once.
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Hello
Pehli bar dekha baap padhai krra
can relate
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This has to be one of the best teachings on reflexes and reflex arc. Clear and extremely easy to picture afterwards. Too good🔥✨
Excellent video, what my school teachers and other online teachers could not explain in hours worth of time, Khan Academy has explained in minutes. An amazing explanation..believe me I was unable to understand a single word before watching this video and now I can take any question head on.
For the first time I found the reflex arc so interesting and in 10 minutes I understood everything. Thank you!
Legends are watching this video 1 day before exams😅😅
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30 minutes before exam
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Noo 2hrs before
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0:15 be safe
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Really pretty well and easy explaination
I literally enjoyed the 11min.
Thanks 😊 for such a beautiful explaination sir.
All this makes me feel like my body is being controlled 😅
Actually u are the brain not the body
It would take a while to understand what I said
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Thank-you so much before i got this video I thought reflex action and reflex arc is very difficult topic but after watching this now am able to explain whole pathway orally... So thankyou for making this video
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Amazing.... for the first time i wanna see the material again and again especially in biology.Thanks
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This very helpful and very mind blowing explanation THANKS
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0:03 what was that 😳
So this is me thinking that the reflex Arc is a complicated twisted palava,
But khanAcademy sure knows how to simplify learning.
Thank you!
Marvelous teacher amazing teaching 🙂👏🏻 I understood the whole part ☺️ thanks a lot sir making this easier to get understand 🙂
I am preparing for an up coming exam and i was so confused with this topic until i came across this video, it helped me understand the whole topic of reflex arc with out any difficulty. Thank you so much:)
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Mind blowing explanation
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It is working 😮
Thank you ❤️this video really helped me , you know how to explain more than my teacher 😃
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It's really and pretty good to have learnt this weird dreadful topic in the most simple way to my memory. Thanks a million upon your great job
Knee jerk reflex does Involve 3 neurons along with the 2 u mentioned interneuron / Relay neuron is also present it's given in the ncert
Yes it is so
So thank
Reflex action - In voluntary response to a stimulus
Reflex arc It is a path which includes the sensory ,relay and motor neurons .
Sensory neuron - send messages from sense organs to spinal cord
Relay - connects the sensory and motor neuron. Transfers the electric signals from sensory to motor neuron
Motor Neuron - carry messages back from spinal cord to other muscles as well as glands.
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*keep it up*
I know this concept is hard but after watching this video it's easy to me but I know that this concept was hard so, thank u very much Khan academy and I'm proud of myself.😀😀
You explained it better in 10 minutes then my teacher in 45 minutes. Thank you
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Thank you for giving a better understand of this video😊
It would be really helpful if Khan academy make the video for engineers subjects.
1.Reflex action are involntary action controlled by the spinal cord without involvement of brain .
2. Reflex arc is a method having one sensary neuron, Reray neuron and motor neuron.
3.sensary neuron- Transmit impulses to spinal cord.
Reray neuron- it connect sasary neuron to motor neuron.
Motor neuron- Transmit impulses to sensary organ.
4. Diagram done in my note copy.
THANK YOU SIR . IT WAS REALLY HELPFULL
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All my doubt are covered
شكرا لك اخي .فيديو جميل ❤️
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Wow .The change in the environment of the body is called stimulus
Wow,I love the way you teach . It Made me understand things I never understood before...
It’s interesting!!
Thank you soo much Sir😊❤
I have understood each and everything.
What an explanation......simple.....interactive.....amazing....thanku
thank you sir. this helped alot. alot. alot.
Wait, isn't what you were referring to a neuron at 4:23 should be a nerve?am I right?
well no, he was talking 'bout a neuron. Neurons can be as long as 1metres long. They're the longest cell of your body
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🙂 bohot achhe. Itna accha apne sikhaya . Hazaro rupaya dene ke baad bhi itna acha nahi sikate hai jitna aap sikhate hai. Thanks a lot ❤
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You forgot to mention the Neuron carrying information from the spinal cord to the brain for interpretation and command
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Fact :
1. reflex action evolved before intelligence is evolved .
This is new to me .
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