You probably get positive comments about your teaching all the time, but I need you to know that you're the primary reason I'm probably going to get to my dream job. I have hope in acing my classes and becoming a competitive applicant. Thank you SO much for doing this. Literally changing my life.
This is EXACTLY why we work so hard. It is one of the most rewarding feelings to receive comments like this. Congrats to you, Anita! That is amazing work 😀
I can't believe you don't have more views or subscribers!! You are a life saver and super informative, thank you so much for doing this in the best way possible!
Thank you soooooo much!!! My professor had us watch a 6.5 minute video where it sounded like Siri explaining someone's dissertation on how this all works. My sympathetic nervous system kicked in sending a slew of epinephrine and norepinephrine from my adrenal medulla into my autorhythmic cells, flooding them with Calcium positive ions, and giving heart palpitations and a super fast heart rate (tachycardia), an external physical sign of my internal rising fear because I absolutely could not understand the material. After watching Part 1 and Part 2 of your videos, my parasympathetic nervous system encouraged my vagal nerves to release acetylcholine, inhibiting the flood of calcium positive ions, allowing the troponin to reattach to tropomyosin in my contractile cardiac cells, allowing them to relax, and therefore returning my tachycardic heart rate to a normal, confident, Ima-ace-this-bish heart rate. :) These videos are truly genius, and my autorhythmic and contractile cells and I cannot thank you enough!
Brief Table of Contents: 1:00 - Beta 1 Adrenergic Receptor (Nodal Cells) 1:20 - Sympathetic Nerve 2:10 - Adenylate Cyclase 4:20 - Tachycardia (More than 100 BPM) 5:10 - Parasympathetic Nervous System 7:30 - Bradycardia (less than 60 BPM) 9:40 - Vagus Nerve 10:15 - Chronotropic Action (Positive and Negative) 10:50 - Contractile Cells 12:10 - Phospholamban 16:50 - Heart Rate Graph 18:35 - Refractory Period Graph A twisted way to help you remember is that the Sympathetic nervous system Stimulates and the Parasympathetic nervous system Paralyzes. You may wish to add this to the description or create your own more detailed version. Thanks for these videos.
Mr, i’m from brazil and i study medicine in argentina, i just took my time to comment here and i wanna say that: You are really changing people life, you have such a good way of explaining, thank you for all this knowledge and keep on the good work!!
Dude I'm a second year med student (bachelor's, Dutch system) and after having to re-do the cardiology course and still not getting it, hating it, studying to keep my head above water and just get this part over with, I landed on this channel since uni was just not cutting it guidance-wise. After watching your videos for a couple of hours, I got to really understand the subject (never has the (basic) subject matter been explained so clearly and have relations been made clear). The understanding got me to suddenly enjoy cardiology so much that I watch these darn videos for entertainment instead of ducking Netflix. You're right man, it IS cool. Your inspiration got me rid of some small career choice doubts. Big thumbs up dude.
WOW. ALL of your videos are so amazing! Wish I had found these during my undergrad degree! You have helped me get through first year medicine. THANK YOU
I’m Thai and I’m pharmacy student and I speak and listen English just a little bit but when I see your video, your video is very very very wonderful for me, I can easy to understand it because you , thank you very very very very much my teacher. (From Thailand)
Beautifully explained! It's your love for science that owes you all the credit for the tremendous amount of hard work, sincerity, and incomparable enthusiasm! Please keep making such videos! It's so inspires us all to keep working hard towards our goals as well! Thanks a ton!!!!!!
You really deserve a nobel prize for these videos of both part one and part two. This is highly commendable. Its very helpful for every medical and paramedical students. Thanks!
I am a veterinary student and even though your videos are human focussed, they have been the most helpful resource for me and my study group! we are extremely grateful for your clear and concise style while still covering the material at a great depth! Thanks so much Ninja Nerd Team!
You have just given me a light at the end of the tunnel.. Physiology final is this Friday and thanks to you, I think I'll make it!! I will forever recommend you to anyone needing to understand all this wonderful stuff that our bodies do!! YOU ROCK!!!! THANK YOU!
I never understood things better than I'm able to do from your video. They are really much better than any of the professor in our college or any other book. You explain things so very easily that I have no problem in grasping the concepts. I really appreciate the way you integrate things so well along with pictorial representation that helps me to retain things for much longer time. I really don't know how to thank you but definitely you are really doing a great job & loads of love from India.💓😘
thank you so much! i don't know what to do without your amazing videos! me and a lot of Syrian students watch and learn from you! thank you for giving us this opportunity !
You are literally the greatest teacher ever. I cant stress this enough, this is like looking at art, you make pure art !!!! My heart goes out to the beauty of these classes!!!!! Hugs and congrats from mexico !!
Your videos are truly incredible. You make my classes seem way less overwhelming and I feel like I actually understand the information you are teaching. Can't thank you enough!
Never really understood this topic in my physiology class, even after having studied textbooks for days.. I had so much stess and self doubt, and now after this video I finally got it. And it's not even that difficult (when properly explained) 😮 I'm deeply thankful for your work, Ninja Nerd team
I am in my first year of medical school and we are still doing remote learning, which I appreciate the COVID precautions, but it also makes some topics difficult to understand and/or visualize - especially depending on the professor. I just have to tell you that I am never confused in these lessons. You explain everything so clearly and sensibly... all instructors should study these videos. I can't put into words the amount of gratitude I have for you. I come here anytime I am unsure or need more help with a subject and you come through every time. Thank you so much for what you do. Once I become a paid doctor, I'll be donating to you all because you are the best resource I've ever found. Thank you again and please don't stop what you're doing.
Thank you so much!! To be able to look at the entire whiteboard at the end of part 1 and part 2 and fully understand EVERYTHING that is going on, and beat you to the answers of the outcomes of events is SO relieving. Wonderful job.
You are an awesome teacher Zach and really funny too. I always laugh at the jokes you make whilst absorbing everything you’re teaching us. Thank you from the bottom of my heart.
just here to say thank you! I recently went from MA to EKG tech and your videos have helped me so much through the process. You’ve answered questions and simplified things more than the 5 cardiologists I work with.We must protect you at all costs!!!!
Thank you so much for the video. Towards the end it would have been great to mention that sympathetic stimulation increases the slope of phase 4 on the action potential graph of the pacemaker cell driving it closer to the threshold. Parasympathetic decreases the slope of phase 4 on the graph driving it further away from the threshold. You drew it, but it is worthwhile to have mentioned it. Many students do not understand the word slope.
That is due to another effect of the proteinkinase A, it phosphorylates the voltage gated potassium channels responsable for the repolarisation to open earlier and cause a faster repolarisation to decrease the systole accordingly.
I am so glad I found this channel, I was so worried about my classes this coming semester but going through some of your videos for pre-studying is going to get me some good grades
Like everyone else here in the comments I want to thank you for your videos. The videos are so long and do actually provide the connections to all the events. Most videos only show the small process of a event but you connect them all together. This is so helpful. Thank you!!
Thank u so much Zach!!!!! I have no words to express uuu and ur team!!!! U guys are savior!!! Where I'm a dental student no one..medical dept cared us when dealing with gen physio, path med etc I always wanted to know and learn these things... In depth and u like a angel came !! Oh man u are amazing🤩... Tons of happiness when realizing that oh! I'm getting to know and correlate these stuffs.. Understanding is crucial and u made us do that!! And that's all we want.. THANK U 🙏TO LOADS
you are the best teacher ever ,the way that you explain every thing is so different and awesome, make my life soooo easier thank you so much for this super great job .
Came here just to say you're extremely helpful! I haven't learned much from my anatomy teacher, a few minutes on your channel & I've learned so much! Thank you thank you!
You are a legend.....we need more dedicated people like you ...... We appreciate the hardwork you pour into making your videos and your utmost dedication......you help us .....this videos are helping me so much ....
Thank you so much! your videos had helped me to better understand the physiology of different body systems and enhance my learning throughout my whole nursing career.
I'm an electrical engineering student but I love to watch your videos in my free time! Your videos are so great that I bet they can make everyone interested in physiology, including engineers-to-be like me :)
I am in my first semester of NP school and you have been a life saver so far. I have learned so much from you already and I will be using your videos throughout this process. Thank you so much for doing these. You are awesome!!! I can’t thank you enough!!!!
![Baby Kia - GLOVES & DRACS (BLACK AF1s) [Official Music Video]](http://i.ytimg.com/vi/ajm8LeB0qQk/mqdefault.jpg)
You should get a nobel prize for this work!!!!
+Nguyen Nguyen LOL!!! Well thank you so much for your super kind words. I truly do wish you the best of luck in your future endeavors.
I agree
Indeed
how about 2 Nobel prizes or more..
For sure... Fantastic!!!
You probably get positive comments about your teaching all the time, but I need you to know that you're the primary reason I'm probably going to get to my dream job. I have hope in acing my classes and becoming a competitive applicant. Thank you SO much for doing this. Literally changing my life.
This is EXACTLY why we work so hard. It is one of the most rewarding feelings to receive comments like this. Congrats to you, Anita! That is amazing work 😀
You are an amazing excellent teacher worth million medical books
Love your lectures thank you so much 😊
I can't believe you don't have more views or subscribers!! You are a life saver and super informative, thank you so much for doing this in the best way possible!
We are so happy you found us! Thank you so much for those kind words!
I always skip the ads but I let youtube play them on ninja nerd’s videos. That’s how much I love them.
Trueeeeeeeeee 💯
Thank you soooooo much!!! My professor had us watch a 6.5 minute video where it sounded like Siri explaining someone's dissertation on how this all works. My sympathetic nervous system kicked in sending a slew of epinephrine and norepinephrine from my adrenal medulla into my autorhythmic cells, flooding them with Calcium positive ions, and giving heart palpitations and a super fast heart rate (tachycardia), an external physical sign of my internal rising fear because I absolutely could not understand the material. After watching Part 1 and Part 2 of your videos, my parasympathetic nervous system encouraged my vagal nerves to release acetylcholine, inhibiting the flood of calcium positive ions, allowing the troponin to reattach to tropomyosin in my contractile cardiac cells, allowing them to relax, and therefore returning my tachycardic heart rate to a normal, confident, Ima-ace-this-bish heart rate. :) These videos are truly genius, and my autorhythmic and contractile cells and I cannot thank you enough!
lmao best comment I found today. Literally so creative and made my day.
Brooooooo
this is how scientific comment look like 😅😅
Not all heroes wear capes. Great content!
Some of them wear mask and throw kunai knives 😅
Brief Table of Contents:
1:00 - Beta 1 Adrenergic Receptor (Nodal Cells)
1:20 - Sympathetic Nerve
2:10 - Adenylate Cyclase
4:20 - Tachycardia (More than 100 BPM)
5:10 - Parasympathetic Nervous System
7:30 - Bradycardia (less than 60 BPM)
9:40 - Vagus Nerve
10:15 - Chronotropic Action (Positive and Negative)
10:50 - Contractile Cells
12:10 - Phospholamban
16:50 - Heart Rate Graph
18:35 - Refractory Period Graph
A twisted way to help you remember is that the Sympathetic nervous system Stimulates and the Parasympathetic nervous system Paralyzes. You may wish to add this to the description or create your own more detailed version. Thanks for these videos.
Thank you bro
That’s genius! Thank you
Zack you are such a hero man... i love you so so much ... you’re making me a genius... Thank you so so much
This guy enjoys teaching..watch him smiling and subtly laughing while explaining simplified complex theories!! WOW.. amazing.!!
Mr, i’m from brazil and i study medicine in argentina, i just took my time to comment here and i wanna say that:
You are really changing people life, you have such a good way of explaining, thank you for all this knowledge and keep on the good work!!
Retweet x100000
this guy is an absolute boss!! I never comment but I feel like I should... thank you brother!! you are truly making an impact out here
You deserve more subscribers! Thank you so much, your videos have been so helpful!
During these quarentine days..it really help me a lot to understand much of this topic..u r really a genius 😎
Dude
I'm a second year med student (bachelor's, Dutch system) and after having to re-do the cardiology course and still not getting it, hating it, studying to keep my head above water and just get this part over with, I landed on this channel since uni was just not cutting it guidance-wise. After watching your videos for a couple of hours, I got to really understand the subject (never has the (basic) subject matter been explained so clearly and have relations been made clear). The understanding got me to suddenly enjoy cardiology so much that I watch these darn videos for entertainment instead of ducking Netflix.
You're right man, it IS cool. Your inspiration got me rid of some small career choice doubts. Big thumbs up dude.
I mean this is just pure BLISS! especially being a medical student with all classes going online . I want to THANK YOU
Every time I’m studying I always supplement all my study time with these videos. It makes me feel more confident! Thanks!
As always, the best work ever. You make a topic look so simple and enjoyable. This is one of the reasons why I love medicine (you).
I watched both part 1 and 2 the detail is incredible, I’m glad I came across your videos. Thank you.
I remember back in medschool trying to study and understand this for days, where were you 10 years ago you could've saved me much time and effort.
WOW. ALL of your videos are so amazing! Wish I had found these during my undergrad degree!
You have helped me get through first year medicine.
THANK YOU
Hats off to this guy! Very obvious you have passion and enjoy teaching! Thank you so much!
I’m Thai and I’m pharmacy student and I speak and listen English just a little bit but when I see your video, your video is very very very wonderful for me, I can easy to understand it because you , thank you very very very very much my teacher. (From Thailand)
The best and most generous tutor of our generation.
Beautifully explained! It's your love for science that owes you all the credit for the tremendous amount of hard work, sincerity, and incomparable enthusiasm! Please keep making such videos! It's so inspires us all to keep working hard towards our goals as well! Thanks a ton!!!!!!
You really deserve a nobel prize for these videos of both part one and part two. This is highly commendable. Its very helpful for every medical and paramedical students. Thanks!
This was like art, thank u so much for your hard work u helped a lot
I hit like before i see the videos :D
you are my best channel eveeeeer
you are quite literally the BEST TEACHER out there!! thank you for doing what you do
Outstanding way of delivering infos , amazing energy👏👏 thank you so much :)
this guy is getting me through my medical degree..... thank you !
I am a veterinary student and even though your videos are human focussed, they have been the most helpful resource for me and my study group! we are extremely grateful for your clear and concise style while still covering the material at a great depth! Thanks so much Ninja Nerd Team!
The immense detail yet simplicity is what makes everyone understand step by step. Thank you!!!!!!
Beautifully explained sir !! I dont have words !! I just have deep deep gratitude!!
AWESOME LECTURE SERIES! GOD BLESS YOU. I CANT WAIT TO TEACH MY KIDS THIS THROUGH YOU ONE DAY!!! Keep the content coming.
Medical students saver!!!! you're the best ever! thank you so much for the hard work and the great videos.
Sharing the knowledge by teaching others, and taking so much effort for the same is a noble deed. You will reach great heights 👏
no one explains like you. You really know what you talk about and go into details. Thank you!
No one could explain electrophysiology of heart better than this.........really liked your vedio
you have remarkable ability to correlate so many concepts.
Dude your teaching techniques is from a different planet! I really appreciate all your effort to make things more understandable for most of us!
You have just given me a light at the end of the tunnel.. Physiology final is this Friday and thanks to you, I think I'll make it!! I will forever recommend you to anyone needing to understand all this wonderful stuff that our bodies do!! YOU ROCK!!!! THANK YOU!
I never understood things better than I'm able to do from your video. They are really much better than any of the professor in our college or any other book. You explain things so very easily that I have no problem in grasping the concepts. I really appreciate the way you integrate things so well along with pictorial representation that helps me to retain things for much longer time.
I really don't know how to thank you but definitely you are really doing a great job & loads of love from India.💓😘
you are truly the only reason i pass my tests. i cant thank you enough! i hope your life is amazing and full of love
thank you so much! i don't know what to do without your amazing videos! me and a lot of Syrian students watch and learn from you! thank you for giving us this opportunity !
i've watched both videos and i cant wait to finish the whole cardiovascular video series . Thanks for such inspiring and motivating videos
you really are so good... how does you make things so easy to digest and understand. thank you so much!!!
best channel ever!!!!!
whenever I graduate from medschool I will mention you. YOU ARE INCREDIBLE
amazing , you taught me more than lectures. a lot of respect and thankful
Sir thank you so much for clearing all the concepts in such a decent amount of time🙏
I love the way you give these lectures. It's like a story and it's so easy to remember
You are an angel with dry erase markers!! You have made a very complicated and complex subject approachable and understandable.
You are the best teacher I have ever seen ... Thank you for this great work !!!!
Thank you so much. You help make our lives much easier.
Life saver for med school A&P.. Thanks so much
You deserve so much more ❤
You are literally the greatest teacher ever.
I cant stress this enough, this is like looking at art, you make pure art !!!!
My heart goes out to the beauty of these classes!!!!!
Hugs and congrats from mexico !!
You made my day productive by teaching such a valuable topic.thnkx
Really love the way u teach complex topics so simply......❤️👍
you are the best teacher I have Ever seen God bless you man
I absolutely love your content! your videos are better than any book on physiology I have come across so far xD
Your videos are truly incredible. You make my classes seem way less overwhelming and I feel like I actually understand the information you are teaching. Can't thank you enough!
Never really understood this topic in my physiology class, even after having studied textbooks for days.. I had so much stess and self doubt, and now after this video I finally got it. And it's not even that difficult (when properly explained) 😮 I'm deeply thankful for your work, Ninja Nerd team
YOU MAKE IT SO EASY TO UNDERSTAND. HATS OFF
I am in my first year of medical school and we are still doing remote learning, which I appreciate the COVID precautions, but it also makes some topics difficult to understand and/or visualize - especially depending on the professor. I just have to tell you that I am never confused in these lessons. You explain everything so clearly and sensibly... all instructors should study these videos. I can't put into words the amount of gratitude I have for you. I come here anytime I am unsure or need more help with a subject and you come through every time. Thank you so much for what you do. Once I become a paid doctor, I'll be donating to you all because you are the best resource I've ever found. Thank you again and please don't stop what you're doing.
Always feel relieved when i see ninja nerd has covered a topic i’m learning at school
I can't thank you enough Zach, your channel is so underrated you def deserve more!
you are such a good teacher. thanks for all you did
Thank you so much!! To be able to look at the entire whiteboard at the end of part 1 and part 2 and fully understand EVERYTHING that is going on, and beat you to the answers of the outcomes of events is SO relieving. Wonderful job.
You are an awesome teacher Zach and really funny too. I always laugh at the jokes you make whilst absorbing everything you’re teaching us. Thank you from the bottom of my heart.
Best tutoring videos I've watched by far.You're a great instructor!! Recommended you to all my classmates.
Concepts simplified..hats off ninja nerd👍
I can't seriously thank YOU enough ! I watch your videos all the time, they help me tremendously
Best teacher award goes to ninja nerd teachers ..superb explanation ,,,better than any medical proffesor in my medical college...
just here to say thank you! I recently went from MA to EKG tech and your videos have helped me so much through the process. You’ve answered questions and simplified things more than the 5 cardiologists I work with.We must protect you at all costs!!!!
Isn’t that beautiful?
Sure is. Thanks a ton for this. Blessed we can learn this from such a gifted instructor for completely free.
Thank you so much for the video. Towards the end it would have been great to mention that sympathetic stimulation increases the slope of phase 4 on the action potential graph of the pacemaker cell driving it closer to the threshold. Parasympathetic decreases the slope of phase 4 on the graph driving it further away from the threshold. You drew it, but it is worthwhile to have mentioned it. Many students do not understand the word slope.
That is due to another effect of the proteinkinase A, it phosphorylates the voltage gated potassium channels responsable for the repolarisation to open earlier and cause a faster repolarisation to decrease the systole accordingly.
You are a born teacher.. your teaching skill is an art..GOD bless you with long life!!
Hey ninja nerd YOU DECREASES SUPER BIG CHAPTER WHICH R HARD TO UNDERSTAND IN JUST 2 PAGES......
THANK U.... Keep the videos coming always.....
you're an absolute gem and i genuinely don't know how how folks do med school without you. Thank you💙
The real MVP- thank you, thank you!
This video is life saving!! Your videos are so clear and informative! Thank you for your amazing work!
You make life so much easier and I couldn't thank you enough
I am so glad I found this channel, I was so worried about my classes this coming semester but going through some of your videos for pre-studying is going to get me some good grades
You are a fantastic teacher! A subject that took me 3 hours to understand 4 years ago you made it very clear in 20 minutes. Thank you!
U are the best that ive ever watched. Thank you so so much.
Like everyone else here in the comments I want to thank you for your videos. The videos are so long and do actually provide the connections to all the events. Most videos only show the small process of a event but you connect them all together. This is so helpful. Thank you!!
Thank u so much Zach!!!!! I have no words to express uuu and ur team!!!!
U guys are savior!!!
Where I'm a dental student no one..medical dept cared us when dealing with gen physio, path med etc
I always wanted to know and learn these things... In depth and u like a angel came !! Oh man u are amazing🤩... Tons of happiness when realizing that oh! I'm getting to know and correlate these stuffs..
Understanding is crucial and u made us do that!! And that's all we want.. THANK U 🙏TO LOADS
you are the best teacher ever ,the way that you explain every thing is so different and awesome, make my life soooo easier thank you so much for this super great job .
for sure you guys are doing a great job, the impossible seems possible with the Ninjas👏👏👏👏👏
This is actually enough to understand this concept ❤❤
Absolute LEGEND!!! Thank you so much for all your work. I don't know what I would do without you
I'm a medical student from Brazil and you saved my day appreciate it!!!
Came here just to say you're extremely helpful! I haven't learned much from my anatomy teacher, a few minutes on your channel & I've learned so much! Thank you thank you!
I really don't know how to appreciate your great work sir...💓
You are a life saver. I'm forever grateful for you and your channel.
You are a legend.....we need more dedicated people like you ...... We appreciate the hardwork you pour into making your videos and your utmost dedication......you help us .....this videos are helping me so much ....
Thank you so much! your videos had helped me to better understand the physiology of different body systems and enhance my learning throughout my whole nursing career.
I'm an electrical engineering student but I love to watch your videos in my free time! Your videos are so great that I bet they can make everyone interested in physiology, including engineers-to-be like me :)
Information and knowledge knows no bounds! Welcome to the Ninja Nerd community! - TG
I am in my first semester of NP school and you have been a life saver so far. I have learned so much from you already and I will be using your videos throughout this process. Thank you so much for doing these. You are awesome!!! I can’t thank you enough!!!!
Your work is priceless !! Thank you so much !