GCSE Biology Revision "The Nervous System"
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- เผยแพร่เมื่อ 1 ต.ค. 2024
- GCSE workbooks www.amazon.co....
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In this video, we look at the structure of the nervous system and then explore how the reflex arc protects us from danger.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (creativecommon...)
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Imagine if this became a part of TH-cam Premium, we'd be doomed
it's called freesciencelessons for a reason
R M then it wouldn’t be FREEsciencelessons?
R M don’t give him ideas
R M key word GUYSS “IMAGINE”🙄😂
Zmp 563 i was just about to say that!!!
good luck to everyone who has biology tomorrow
Question is, why were you looking at paper 2 stuff before paper 1 exam?
btw the time you said it we had paper 1, this vid is for paper 2
how about today🌝
@Nurah Sayed I have one TODAY
@Nurah Sayed in the morning for me😭😭
This guy needs a knighthood
JDCFC agreed
He actually does
Yeah he does!
Absolutely!!!
Petition to make that happen
I like how he keeps his videos short and simple so anyone can understand without having a brain seizure 😂
The comment is appropriate to the topic.
Of course imao👍👍👍👍
Yaa actually I like his way
ratio
Wait, I had to pause my video to type something to you just now. I want you to know that you're a GENIUS. A full on genius. Something I couldn't understand for months was understood in 3-5 minutes. Thank you for your helpful videos, and I can see a lot of effort goes into these videos - so thank you!
this guy has gotten me through many, many tests
nice
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@@XENOMATTER-rq8bi nothing spectacular but i found this amazing
Literally in my school toilet 10 min before exam watching this 🤧
Lol
Where 2024 people at?
I say we all refer to him as Sir because let's be honest he deserves it for his service to the community
sir I cannot thank you enough. You are a legend! I missed out on this whole topic of homeostasis because my teacher was ill and the cover was useless and they weren't qualified teachers.
AK GAMING I feel your pain
AK GAMING
Imagine that, but for the entire course
fam ride out for ur teacher
haha 2 years later i missed the whole homeostasis topic sine we did it in quarantine😭😭
Hello sir, thank you for publishing these videos, this will help me for my Monday's GCSE biology paper 2 exam. My only request for you sir is to please create A-Level videos for chemistry, biology and physics please.
Any advice for me? My mock GCSE is tomorrow
Same I have bio tomorrow
Am i the only one watching these vids this yr?
My guy be storing an hour content into 5 mins
Wish you were my teacher! The work you do is priceless, thank you Sir.
i love ur vids, but WHY IS DIS SO COMPLICATED
OHHH BOYYYY HAVE I MISSED YOU MR FREESCIENCELESSONS!!! I'm doing my A Levels at the moment and the only science I do is Psychology and I don't understand this basic neurons stuff so I'm back here again. I forgot how much I love these videos.
Welcome back. I'm glad to be able to help.
GCSE 2022 anyone?
its sad how nobody knows his name.
Wez Shaun Donnelly
No it’s Shaun the Don.
Shaun
Only uncultured people do not.
give this man a million dollars @MrBeast
i keep getting distracted with the ksi and deji beef and before that the bloody james and tati crap
Me
I love how this guy can teach me something in less than 4 minutes despite my science teacher being unable to make me understand this in 3 weeks, btw anyone doing their mocks/other exams soon?
Me, year 10 mocks tho I want to cry tho
1 because he is a legend of all time and explains things better than an actual qualified teacher
2. Because I missed like 3 to 4 lessons of biology and I am counting on the legend himself rn
I have my mocks tomorrow and no one told me anything so I am like crying in pain and in happiness at the same time is that possible??
@@emilijakolina8423 sadlife,
@@emilijakolina8423 damn, how’d you do?
I posted this whilst I was in yr 10 and i got grade 5/5 for science which is the highest mark for foundation exams, so i did really well
In yr 11 now and have mocks in 2 weeks 😬
why are you reading this. FOCUS ON THE VIDEO
Hi sir, Im watching your videos religiously and making a flashcard for each video you make. Do you think this will be effective enough to get a 7/8? I'll be making sure to do practice questions too
def
how did it go?
how did u do ?
He is the Mr Hegarty of science
I’m using this now for BMAT revision but I just want to say thank you for helping me so much in 2018 for my GCSEs, you helped me achieve my 9 :)
how can i remember your videos in the most efficient way
making notes at the same time as he is talking, watching multiple times etc...
yumon bio exam tuesday
The only way I’m passing gcse is this
So the electrical impulses pass from the spinal cord to the relay neurone and then to the motor neurone, without travelling through the brain where the signals are processed.
If that's the case, how are we aware of the action after it has taken place
it goes through the brain afterwords
had no clue the brain has a subconscious when it comes to reactions, I think that also happens when you lie as well. my friend figured out that when you lie, your face makes a small twitch, but the person who is lying has no clue its happening.
my clueless brain watching this a night before the mock, thank you freesciencelessons
i love u you underrated legend x
You’re the reason that some British kids have passed all science exams and achieved their higher education. I kid you not, not one person in my school doesn’t know who you are. Got my mocks next week and ahhh this video has really brushed me up for it, I’ll think I’ll be decent with it.
Im working at a 7 in bio (proud of it) and yes I still get confused with all the key-terms 😭 but this channel is legendary at summarising them up! People should also stop assuming that just because you’re a high/low grade pupil, doesn’t mean you have more independent understanding than the rest because most of the time it’s really not the case. Ahhhh it’s literally down to teachers and nothing more. Teachers give you everything lol and a good one really ups your chances of finding that perfect revision style that suits you best to get those super high grades! A failing student can A+ pass with a good teacher the EXACT same as an A* student can flop with a bad one. Mwah best wishes to gcse and a level students too, if you want it badly trust me the work will always pay off
2022 GSCE AHHH
#getfreesciencelessonsaknighthood
Hi Sir. Thank you for this video, it is helping me a lot with my GCSEs. Do you know any tips to get a Grade 3-4 in Biology?
a grade 3 or 4 is a low target to getting good GCSE's you should be aiming for minimum grade 5s, you need to be more ambitious , also use plenty of flashcards they are a brilliant revision tool for learning definitions , when you do learn these definitions you have guaranteed yourself a grade 4or 5 and also practise your maths 20% of your marks are on maths.
lastly if you think these tips are rubbish well listen up because I used these tips and i jumped from a grade 3 to a grade 8 within 6 months , but good luck on your GCSEs though.
what did u do with the flashcard that helped u so much
well i wrote the questions at the front and the answer at the back , so when you go over them they embed in your head so you wont forget them.
What a Donnie
I have biology tomorrow and acc know nothing on this
Is coordination centre and central nervous system the same thing??
Hi
Thank you for this just wanted to ask a quick question
How and when should I revise for Paper 2 for each science especially biology paper 2
Thanks
Much appreciated
3 years later and no reply....
How did you do in biology?
@@JJ-vu9bj I wonder how?
Hi Sir, (or anyone who knows) I've tried really hard to make sense of this, but I'm quite confused about the difference between a general response of the nervous system, and a reflex action.
I understand that the relay neurone is only involved in the reflex response- hoping that's true. Apart from this, are the only other differences that there is no conscious decision made by the brain, and that it's much faster? Also, am I correct in thinking that the diffusion of chemicals across synapses applies to all responses of the nervous system?
I apologise if I'm not making too much sense, and your videos are always incredibly clear; this is just a tricky topic for me.
Thank you.
Essentially you are correct. However, I think that relay neurones are found in other aspects of the nervous system apart from reflexes.
Right. I'm finding this clearer now so many thanks for your response (and all your efforts with these videos!).
Hi Free Science Lessons, thank you for your brilliant videos! I really struggled with science but your videos were great revision and helped me get grade 6 in science! I will miss watching your videos!
Here after my teacher was being clueless and her little brain capacity wasn’t adequate enough to educate me. Thank you free science lessons
Lockdown 2.0
He got rid of the like/dislike bar because he knew he didn't want people to get jealous of that 1 - 0 ratio.
hey Shaun Donnelly i really appreciate your effects on my education
do we need to talk about axon and neurotransmitters etc??
yes i think so but not guaranteed :)
This is a hard topic
This guy came to my school before in our science class
Don't let the thought of exams play on your nerves...
I know where you got that from
no-one else here in quarantine???? just me....
omg thank you for starting this we haven't even learnt the nervous system yet ek
Biology mock, anyone?
I would have just finished my first set of mocks but because of covid19 that has all been cancelled
hi sir
on the spec it says 'how is the structure of the nervous system is adapted to its function' so if we get a question on the adaptations of the nervous system what would be the key points? the only adaptation I can think of would be how the cell itself is adapted to carry impulses faster but doesn't seem to be about the system.
the function is to make the response and move the hand away so i think the adaptaion is what is part of the nervous system eg all the neurones and how does this relate to the functioin of moving the hand away, not how the nerve cell is specialised as thats b1 so ye the strucure is all the different nerves and cns which is also the adaptarion etc and the function is the passing along info
hope that helps lol
That's a good question and the spec is not clear on what they expect. Personally, I might describe how the nervous system uses electrical impulses which are much faster than hormones. The nervous system targets the impulse to a specific location (eg an effector) whereas hormones travel in the bloodstream around the body. The neurones in the reflex operate without "consulting" the central nervous system first, which make the reflex fast etc.
But I don't know what question the exam would ask and they might give you specific information to use or they might give you a nervous system from a different animal and ask you to apply your knowledge. Make sure that you can label the parts of the reflex.
thanks your answer would make a lot more sense, cheers for the quick reply.
Hi sir, just wondering if there will be a video coming out about the brain for the new 9-1 course, thanks, keep up the good work.
Thank you so much I didn’t understand a word of this topic
Made my revision and my notes short and very easy 👍👍 Thankyouu
Is your CNS the only coordinating centre??
Yes that's correct.
THIS GUY HELPS ME AND SO MANY OTHERS SOOOOOOO MUCH!
this guy is a literal legend
do you watch bollywood movies?? pls answer
Hi Sir when will the videos for topic 7 be up? The ecology section
I'll be starting to upload them in around one week.
Good luck to everyone with mock exams :)
Hi. Just wondering Do synapses only come into action in reflexes only???
No
Anybody know the name of the opening music?
Got a test on this, I’m going to fail lol
Very clear explanation of the reflex Arc defined. Thankyou
I've got to say, B2 is my favourite part of the syllabus, closely followed by P2.
this guy needs the worlds financial funds all together and given to him
Sean my slime 😜😜💯🥶🥶🥵
Thank you very much so helpful!
who's watching this now
me
Sabaa Has
Do we need to read dorsal root, white matter and other parts' structure and functions of reflex arc???
Just for some clarification is it neuron or neurone because I've heard it said both way? Is there a difference between the two or is it just due to preference?
darthvader532 It’s neutron, I’m 11 months late but oh well
@@kamaraolejnik846 no it's not because a neutron is a subatomic particle and is nothing to do with neurone.
HI SIR, i was wondering if you could please tell me when your workbooks will be out as i have been waiting a while. Thanks! Great video by the way!
What if relay neuron is not present and sensory neuron is directly connected with the motor neurons?
The only youtuber that actually helps
Thank you for your videos friend they are very helpful ❤
heyyy! I am currently revising for a test and I just wanted to know...
What does reflex arc mean?
You know the specification on the AQA website, how do I know that its reliable/up-to-date?
Thxx
i think it just updates automatically, the most updated version will always be on there :)
sameee bestie i didn't understand anything from my biology lesson since I wans't there for like 3 lessons In a row
thank you I was taught this in class and I had no clue what was going on thank you for putting this all in a 3-4min vid I really understood this
same
ah i see ur a val player
Free. ❤.
Thank you so much this helped a lot ❤️
It really is
Hello Sir, how are you? Many days you did not make video. Are you busy or okay. I really miss your class.
When there is a reflex action, the brain is not involved in this decision, so how does the path of this change in the body (etc. where in a normal loop, the CNS is the brain or spinal cord, where do the sensory neurones flow to)?
Reflex actions are coordinated in the spinal column
Don’t think you need to know that for gcse
the more of these videos I watch the more I realise how screwed I am...we had a really bad teacher in year 9 which had a knock on effect and now we're so behind in bio. also we've missed out like half of this topic completely. please help
Good look to everyone who has biology exam tmw
Hi. Do you know if "The Eye" is on triple or trilogy?
Jeonex triple
i don't think he appreciates how amazing he is
nah I got set this for biology homework
biology homework now complete :)
isn't a reflex arc just an electrical signal though- so that it is quicker, pretty sure that BBC says it does not go across any synapses
Who’s on teams now
ayy i feel u
got my mock at 1pm lols
WOW
Thank you so much, this is really helpful
one of the hardest topics :'(
I have a test on this tomorrow and I'm a nitty (jk) I just slept through half my lessons because ik I'll learn more from these videos. I'll let you lot know how I do
Well...how did it go? Did u pass?
Best teacher of the year nominee right here
Living legend
The backbone of our society.