Imagine what your grades would be like without videos like this... :'(

@MrPollockBiology

8 жыл бұрын

Glad I'm helping to boost your grades :) Stay positive!

@robertstarhanovs2844

8 жыл бұрын

Exactly. I am watching this right before the exam today and this is of great help. Quick and simple revision!

@flarezard4746

7 жыл бұрын

^ Quick and simple revision... well you see, I never really attended classes, and I'm only just learning about these things 2 days before the exam, and this is my building block before I actually start reading the book. :V Though I must point out that there have been some different variations and condition than were explained by him differently(ex: transport in phloem) sometimes there is actually a low conc of sucrose within the sieve element which just allows for facilitated diffusion instead of pumping and active transport, although the companion cell does need to use active transport to move H+ ions to the sieve element to move from palisade cells toward to companion cells with ATP.

@flarezard4746

7 жыл бұрын

It kinda confused me at first because what I read from the book and what he explained were different, but I understand now, also, I think I should leave this... and homeostasis for last >_> THANKS FOR THE VIDEOS DUDE

@kiileetsoku2397

5 жыл бұрын

Brooo🌚🌚🌚!

Thank you soo much..this video is wayyy better than reading my text book like 10 times

I'm really triggered by the way you say diastole and systole but I can get over that because of how amazing this video is - saving my A levels one step at a time

@huzafah

4 жыл бұрын

lol that's how you say it....

@user-tz5pz8ev7u

4 жыл бұрын

@@huzafah nah its not

@huzafah

4 жыл бұрын

@@user-tz5pz8ev7u great keep saying it then

@user-tz5pz8ev7u

4 жыл бұрын

@@huzafah yeah I will thanks

@user-tz5pz8ev7u

3 жыл бұрын

@leondesu_ oooh sorry

I misheard and thought he was going to show the flow of the blood with 'this pink duck.' Imagined a little toy duck moving around the diagram, made me smile.

Thank you much for explaining this in a magnificent way. I'm preparing for my boards for Physical Therapy and cardio has always been a weaker area for me. This literally set off the lightbulb I needed. Thank you for taking the time to do this and for having made it so simple.

SO much easier to understand than the overly wordy textbook ! thanks

@MrPollockBiology

9 жыл бұрын

Glad you think so!

Amazing! Thank you so much! I completely understand it, rather than just remembering the cycle and everything that goes on, I now understand WHY that's the case!

Best thing For last Minute revision

Absolutely a life saver, I watch your video every time I need to revise, got a big test coming up on Thursday this week! Thank you so much they are so easy to understand.

Its so lucky the new AS course has enough overlap, I was worried I wouldn't find any relevant videos but the pressure graph and node info was exactly what I needed, cheers bro

@MrPollockBiology

8 жыл бұрын

+Gabe Fernandes No worries; new AS isn't a great deal different to the old one. My channel should help :)

I've found it works to remember arteries away from the heart and veins visit the heart, thanks loads this is great revision

thank you! so much, my teacher doesn't do a lot of teaching... this helped so much! thank you so much :) your whole channel is helping me so much

@MrPollockBiology

8 жыл бұрын

Glad you're enjoying!

I use arteries go away or 'art' (out) and veINs go IN

@MrPollockBiology

8 жыл бұрын

Whatever works for you :) Thanks for sharing!

@ebunoluwataiwo9975

5 жыл бұрын

Thanks doode

I've got u this may June 2018 but I'm working my ass off for the comming oct-nov 2018 and you are helping me alot 🙏 you are the only teacher I have I count on my as 💖💖💖💖

Really, really, really, really (infinite) helpful.

Thank you SO MUCH! This is pure gold

This is absolutely useful! I am a visual learner so I am glad you illustrated the flow of blood into the heart. I am recommending this to my classmates. Thanks so much!

this video was so so helpful, thank you so much! finally understand the heart

I couldn't make head or tail of this subject until I watched this video, thanks very much! Extremely helpful!

@MrPollockBiology

9 жыл бұрын

Glad you think so! My pleasure.

you explain this so well! I learnt more in this video than I have in 3 years of learning about the heart at A-level... Can't thank you enough for these great videos :)

My exam is tomorrow so this is excellent for not learning anything new but helping me remember the things I knew, much more easily and in more detail. Thank you.

@TortTf2

7 жыл бұрын

Also I remembered by Arteries AWAY , VeINs

“Oh, there’s the summary” 😂😂 Thanks for this video!! ♥️✨

Great job Mr Pollock!

I have some questions... AV valves closes when pressure of V>At(is it due to preventing back flow back to atria, forcing blood out of ventricles???) AV valves reopens when pressure of VAO ( is this when blood has to pump out of the heart??) S valves close when pressure of V

Love button please... and thank you for taking the tone to explain and upload this video. 😄😊

@MrPollockBiology

9 жыл бұрын

Nola Paul Haha, no worries :) glad I could help!

this guy is amazing ! thank you so much for saving my life !! I have my As biology paper day after tomorrow. I wish I could find more videos of yours. Thank you once again !!!

@MrPollockBiology

8 жыл бұрын

Thanks for the kind words; hope the paper went well for you!

Thank You Mr Pollock. You are a LIFE SAVER! God bless. :)

Your explanation of the graph was so helpful thank you!!

OMG such a lifesaver, completely understood the entire topic after watching this video . good job !

@MrPollockBiology

9 жыл бұрын

Glad I helped!

Thanks so much for this 1 day left before my unit 1 exam, gone from my least known topic to my best topic! :)

@MrPollockBiology

9 жыл бұрын

Njmstorm Glad my video has helped you gain some confidence! Best of luck!

I'm watching this video to prepare for my exam and it gives me the knowledge I'm in need.

doing edexcel, but apart from the nodes it requires the same knowledge, great help, graph was my main tripping point on this subject, i intended to memorise it but now i actually understand it. Thanks a tonne!

@MrPollockBiology

9 жыл бұрын

Boby Gandhi Thanks!

Best video on cardiac cycle found on youtube. Thank you

Great video. Have watched it like 5 times now. Memorised and ready!

Thank you so much for the amazing lesson .I really understand :).God bless you

Trust me the heart is an easy topic but I hate it. You've made it so much more comfortable for me! Thanks so much.

@MrPollockBiology

8 жыл бұрын

Glad I could help!

This is a very good video. You have explained cardiac cycle very clearly with good diagrams. Thank you so much.

Thanks, this was very helpful for my AS biology mock

Tomorrow is my exam and you have no idea how much this helped thank you

@MrPollockBiology

8 жыл бұрын

Good luck for tomorrow!

i swear i did my exams without reading the book and watch your videos instead. still managed to get an A (thanks)

This was so helpful! (I'm doing Edexcel but obviously there are crossover points) This video has really helped me understand the subject better, where the textbook has failed! Thank you :-)

@MrPollockBiology

9 жыл бұрын

Emily Eskdale Thanks for the kind words; glad you enjoyed!

T9x for making this amazing vedio... Helped a lot in synchronizing all the chaos of words I got from my textbook... Love and regards.from INDIA.LONG LIVE

@MrPollockBiology

9 жыл бұрын

Rishay Raj Thanks for the support! Happy to help!

@ardrarajanardrarajan4612

5 жыл бұрын

Thank you so much and what i say I don't know ,this video is very useful and helpful video tomorrow is my exam and i see the video and not read away the text book

You have really done a wonderful work for me it was important that you saved my time nd helped me know a lot more with school days basics....:) :)..Thnaks so much

i really understood everything in you taught.. Good Work.. God Bless U !

@MrPollockBiology

9 жыл бұрын

Thanks; glad I could help!

tysm for this video!! Really put it onto simpler terms :)

This is explained so well. I understand everything and have learnt more in this video than in the lesson :)

Thank you so much for this video, sir! It was very helpful! I'm going to totally ace my mock tomorrow, and the tips you gave in order to remember are great too (A.A and E.E) :D

Many Thanks ! Greetings from EGYPT 😊

You've just earned yourself a new subscriber! Really helpful Thank you 👍

You are amazing!! I could never fully grasp the whole concept of the heart & cardiac cycle until I watched your videos!

@MrPollockBiology

8 жыл бұрын

+MsLilia74 Cheers!

You are a top notch lad, made this topic so simple! Cheers mate!

this guy put snaprevise to shame w this vid.. first actual good vid of heart and circulation thx alot

Absolutely brilliant! Thank you so much :)

@MrPollockBiology

9 жыл бұрын

hamsini blue No worries!

Awesome video. Please upload more.

thanks for the help. very generous of you

again very concise and great notes. i appreciate this

@MrPollockBiology

10 жыл бұрын

Glad it's helped!

@Imperfecto365

10 жыл бұрын

just wondering if u going to put any aqa as biology videos up!

@MrPollockBiology

10 жыл бұрын

Thanks!

@MrPollockBiology

10 жыл бұрын

Amar Shah I can upload some more as soon as I get time to make them! I've just uploaded one about standard deviation and also one about Index of Species Diversity. Any other topics that you would like?

Thanks so much! I was so confused before watching this video, hopefully I'll remember it all for my exam next week😄.

its become very easy to understand.thanks sir..

i loved this video it really summarises the topic well

Thank you for this really clear explanation!

Omg u sound like my economics teacher. Listening your voice reminds me of him ,which motivates me to study harder including biology cuz he is a good teacher even tho I don’t study economics anymore❤️

Thank you , just started reading on this topic and this helped alot!

@MrPollockBiology

10 жыл бұрын

Thanks! Glad I could help!

This video is actually so good!!!!!!

Thank you very much .l like the way you explain

that's really good and easy to understand.

@MrPollockBiology

10 жыл бұрын

Glad you think so! Thanks!

thank you !!! feeling so smart right now

@MrPollockBiology

8 жыл бұрын

+Helga Tanny Glad I could help!

I would like u to make a video on immunity As biology .thank u

2:30 5:47 7:26 7:47 9:05 10:15 11:10 11:49

@inthebackwiththerabbish

5 жыл бұрын

damn thanks saved me time ;)

I do ocr but your videos are very helpful❤️❤️❤️

Excillent .....your explaining style too good ..plzz makes more vedios on another topics as well

BEST TEACHER EVER!!🙆🏽‍♀️😫♥️

Have to attend my biology test today Good luck🙏🏻💪🏻

Is all of this video content the same as new spec a level aqa biology?

@yannfourniol1485

5 жыл бұрын

not sure if we need to know about the nodes?

Perfect revision for exam, thank you.

Great video but in the spec we also have to know about volume changes im unsure of exactly what to know about that

@MrPollockBiology

10 жыл бұрын

All you need to know is that in systole (contraction) the volume of the chambers decrease, and this results in an increase in pressure which causes the blood to move. Hope this helps!

Thank you so much I really understand now.

very good video, helped me a lot

I’ve always been taught arteries away veins visit

love this vid thank you mr pollock !!

Great video!!! Great review for exams!!!

Amazing video!

This is amazing.

Thank you so much for this video!

during atrial systole, don't the AV valves open, and the SL valves shut? not sure, so I was asking ( at 11:10 )

best video & explanation!!

@MrPollockBiology

9 жыл бұрын

JalebiJaan Appreciated!

Thank you sir! This was very helpful

Thank you so much. Very helpful and concise. Are you a teacher?

great video!! thank you!

love your videos, such a lifesaver :)

@MrPollockBiology

10 жыл бұрын

No probs!

Great, thanks!

@MrPollockBiology

10 жыл бұрын

Thanks for your support!

Thank you been very helpful. Exam tomorrow and I feel a little bit more confident thanks to your videos. I cant find a video on gas exchange( lungs). Do you think you might upload one.

@MrPollockBiology

9 жыл бұрын

Thanks, and best of luck for your exam. I don't have a video on gas exchange (yet), but it's on my list of ones to do before the summer exams. Keep your eyes open!

This vedio is amazing. Thank you so much

@MrPollockBiology

9 жыл бұрын

No problem!

Wait...in the video it says that atrial systole and ventricular diastole are the same...so in atrial systole the atria contract...but in my textbook it says that during ventricular diastole the atria and ventricles relax..?

Very interesting 🤔🤔🤔

Great video, thanks:)

Really appreciated it!!!

haha I am your 2.9th K like but I watched this a year ago and forgot to like it! Thanks for the great vids tho Mr Pollock!

😂 'oh, there is the summery'. Cheers for the vid 👍🏻

I'm confused.... my tutor has taught us/i've written down notes which don't correlate with yours. I don't know what is right and wrong and i'm so stressed! I've written 'ventricular systole: blood rushes out of ventricles, pressure in ventricles drop'. You're saying it increases!

Wow I finally understand...thank you!!😍