Infact I was given as an assignment by my physiology teacher to look on the electrocardiogram,, but since the top most genious lecturer has elaborated it in this simple way,,,my fellows I promise I will present this to my teacher!!!
Your videos are literally a life-saver for school. I'll read a concept, not understand it, and then watch your videos to really GET something. I don't have to memorize nearly as much now because your videos help me actually understand the concepts. THANK YOU!!
You are a genius; you are so good at what you do. You do not assume knowledge. You present all your topics in extremely clear and logical manner. I have learned a lot from you and I would like to say a BIG Thank you to you. Please do not stop making videos. You are making a big impact in many lives. God bless you mightily.
Thank you so much for making all of these videos! You make everything so easy to understand and learn and its really helping me through my first semester of dental school :)
AK Lecture Dude, I have literally stopped going to all my biology classes because your lectures are way more productive. Thanks bro, and best wishes to you in medical school.
Better late than never, had a vague concept of how heart works, your video living up to Ak lectures motto, hepled me in grasping the CVS topic in short time, without any financial cost or loss of energy. Thanks fr saving from the academic redtapism .
Perfect lecture and explanation, I only have one correction :The atrioventricular valves are actually open before the atria start contracting,and 80 % of the blood flows passively through pressure differences in the ventricles.they only start contracting in the end so that they can „squeeze“ the rest 20% of the blood into the ventricles. Thanks for uploading greetings
I just love ur videos u have helped me so much that I can't even explain.!! Plz continue making these lecture videos....!! Waiting for the notification from your channel!! Thank you sir🙏
Aren't the two AV valves already open, and the ventricles fill 70% by passive means then the atrial sístole pumps the remainder. Just thought I would throw that in there
p and QRS are positive cause increase in voltage takes place during depolarization of atria and ventricles but T-wave is positive as well because "the last cells to depolarize in the ventricles are the first to repolarize."
I don't understand. I normally associate depolarization with an increase of voltage. But here there are points when it repolorizes but the voltage increases. For instance the T and U waves. Why does the voltage increase for repolorization?
I don't think depolarization is an increase in voltage, rather, I think it is a decrease in voltage. voltage is the potential difference between two charged 'things'. so when a cell membrane depolarizes, it approaches 0 mV (no potential difference), so voltage is decreasing, not increasing. except when it hyperpolarizes, it not only approaches 0 mV but goes beyond to the positive side, still increasing the potential difference after it had decreased (gotten to 0 mV). i hope i made sense.
Why does repolarization of the ventricles(which is basically the decrease in membrane potential) causes an upward(positive) T wave ? Shouldn't it produce a downwardly(more negative) wave ?
Guys can anyone explain to me what is happening in the heart strictly between the blue R and the green Q segment. Is that atrial repolarization? Or is it something that needs to happen in order to see ventricular depolarization? Or both? Lol...this question is killing me plz help!
Infact I was given as an assignment by my physiology teacher to look on the electrocardiogram,, but since the top most genious lecturer has elaborated it in this simple way,,,my fellows I promise I will present this to my teacher!!!
you are simply a LEGEND!
u are perfect ... please don't stop making video
RAP MONSTER NOT DANCE MONSTER agreeeeeee!!!!
Your videos are literally a life-saver for school. I'll read a concept, not understand it, and then watch your videos to really GET something. I don't have to memorize nearly as much now because your videos help me actually understand the concepts. THANK YOU!!
Absolutely Genius!.
I think you are better at explaining things than my professor! you are so wonderful!!!
You are a genius; you are so good at what you do. You do not assume knowledge. You present all your topics in extremely clear and logical manner. I have learned a lot from you and I would like to say a BIG Thank you to you. Please do not stop making videos. You are making a big impact in many lives. God bless you mightily.
Thank you so much for making all of these videos! You make everything so easy to understand and learn and its really helping me through my first semester of dental school :)
How many hours do you put into making these lectures.Daily?
AK Lecture Dude, I have literally stopped going to all my biology classes because your lectures are way more productive. Thanks bro, and best wishes to you in medical school.
U are absolutely a genius
Better late than never, had a vague concept of how heart works, your video living up to Ak lectures motto, hepled me in grasping the CVS topic in short time, without any financial cost or loss of energy. Thanks fr saving from the academic redtapism .
Soo great to understand and making my way into the clinic much easier :D
Perfect lecture and explanation, I only have one correction :The atrioventricular valves are actually open before the atria start contracting,and 80 % of the blood flows passively through pressure differences in the ventricles.they only start contracting in the end so that they can „squeeze“ the rest 20% of the blood into the ventricles. Thanks for uploading greetings
Thank you for your videos and lectures it has really helped. From Nigeria.
you deserve much more views. thank you very much
I just love ur videos u have helped me so much that I can't even explain.!! Plz continue making these lecture videos....!! Waiting for the notification from your channel!!
Thank you sir🙏
Simply AMAZING!!!
Excellent and well explained video.No stopping SIR !!!!!!!!
Aren't the two AV valves already open, and the ventricles fill 70% by passive means then the atrial sístole pumps the remainder. Just thought I would throw that in there
Thank you from Malaysia !
I LOVE THIS CHANNEL SO MUCH
Why is P and QRS a depolarisation while T and U are repolarisation waves although all produce a positive deflection.
p and QRS are positive cause increase in voltage takes place during depolarization of atria and ventricles but T-wave is positive as well because "the last cells to depolarize in the ventricles are the first to repolarize."
Oh I didn't know that you cover lots of subjects. Your videos had made me improve a lot, thank you.
I don't understand. I normally associate depolarization with an increase of voltage. But here there are points when it repolorizes but the voltage increases. For instance the T and U waves. Why does the voltage increase for repolorization?
the T is in repolarization representing the ventricles after contraction,,,compared to the QRS ...they have a charge but its reduced.....I think!! lol
I don't think depolarization is an increase in voltage, rather, I think it is a decrease in voltage. voltage is the potential difference between two charged 'things'. so when a cell membrane depolarizes, it approaches 0 mV (no potential difference), so voltage is decreasing, not increasing. except when it hyperpolarizes, it not only approaches 0 mV but goes beyond to the positive side, still increasing the potential difference after it had decreased (gotten to 0 mV).
i hope i made sense.
Why does repolarization of the ventricles(which is basically the decrease in membrane potential) causes an upward(positive) T wave ? Shouldn't it produce a downwardly(more negative) wave ?
great explain, but i have a question about hyperkalemia and hypercalcemia can affect rate of the heart or no
You're really amazing! Thank you!
so do the atrioventricular valves open at ventricular repolirization
your awesome thank you for your clear yet amazing work
thanks you are best teacher
If I remember correctly the closure of the valve is not producing the sound...I'll check my notes tomorrow.
Good video!
A Genius!
awesome explanation of ecg
I love you, sir!!!
THANK YOU!
What a great lecture... Thank you so much :)
You Are AWESOME !!!
Excellent feedback unparrel on ecg thanks dr sir 21/02/2022
The best one
Thank you very much
amazing
Thank you Sir.
thank u sir!!
11.02 he moves away from the board
God bless you 🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲🤲
thank you for this video
love it
thanks alot
thanks teacher
Perrrrrfect 😎
Thank sir
THANKS ALOT !
Andrey the slayer!
Guys can anyone explain to me what is happening in the heart strictly between the blue R and the green Q segment. Is that atrial repolarization? Or is it something that needs to happen in order to see ventricular depolarization? Or both? Lol...this question is killing me plz help!
how can people dislike this video??😱😱😱😰😰😨😨😨
best
I love you :(((
2 electrodes on each arms and only one on the left leg. These are the augmented electrodes.
aVR, aVL, AVF
love it
thanks alot