2 hours of lecture I learnt nothing compared to only 10mins spent on this video..... thank you Dr you are saving lives

Some people are born to teach well and this guy, for me, is one of those people. I watched a lot of videos explaining this and never had a better grasp of it until now.

All my biology teacher does is ask us to look through textbooks every single lesson and do the bare minimum of teaching. I've learned more in this video than I have in two weeks worth of lessons regarding the heart. Thank you Dr.

Two hours of lecture is nothing compared to this 10mins of video...you made it look so easy...thank you Dr John campbell🙌🏾

I am one person who is not into medical information but after watching this i felt love for this subject developing. I could see passion for his work in his eyes everytime he looked back at the camera as if addressing a class. So much respect to you Dr

I shouldn't have to spend over two hours reading books to write my exams. I am a nursing student and this video has made my day. Thank you doctor

I watched you 4 years ago and you were the best foundation to my medical school journey I’m so grateful I have remembered your drawing for literal years

Thank you so much! I'm in nursing school and struggling with the cardiovascular system, this video helped me understand the structure and function of the cardiovascular system.

I have never been so thankful with today's technology that I have access to this kind of lecture. Watching you feels like I am in a highly sophisticated school. Learnings never made so easy. Thank you so much, Sir! Godbless!

Basic structure and function of the heart. Often people gloss over the 'simple' stuff, and miss areas of important understanding. The main things are the plain things, and often, the plain things are the main things. Please draw your own diagram, rather that taking the short cut of freeze faming and screen capture.

I'm currently on orientation on a CICU unit and was just about to quit when I stumbled upon this video. OMG!! Everything makes sense to me now due to this lecture. And I love the way you took your time in explaining everything, I've been playing this video over and over again. Thank You Dr. Campbell!!!

Am from Uganda, most thanks to you mister, May God grant you more knowledge. Long live Mr. Champwell

These lectures is how I understood the structure of the heart and in turn scored an 86.2 on my Cardio A and P exam. Thank you, sir

You're simply a genius! You explained in 10 minutes what my professor couldn't do in 50!

Obviously Nclex exam has been a pain in my ass, but that won't bother me any longer I have passed my exam already thanks to you Mr Gabriel God bless you more cuz you made it possible for me.

What an incredibly simple, informative description of the blood flow...............THANK YOU.........wish you were MY lecturer

There should be more teachers like you that teach truly for understnding! You Rock Dr. Campbell!!!! Thank You for Sharing our Skill with Passion of Teaching!!!

20 yrs later I finally understand the heart my most feared anatomy lecture ooooh God! Great teacher thx, 1st year nursing canada

The best lecture ever melts down all confusions. May God bless you more with happiness and prosperity Dr. C you are a gift to the world.

Absolutely phenomenal !!! 👏👏👏 There is so much to be said for simplicity and thoroughness. When you can take such a difficult subject and break it down so well, you are indeed a pedagogue. Thank you, thank you, thank you. 🙏

Hello Dr Campbell. I am an expat living in California and currently about to sit the California State exam for my EMT (emergency medical technician) course. It is an accelerated course and a brain overload. I search and watch many you tube videos during my text rest period to provide additional mental stimulus to assist in memory imprinting. It works for me. One thing on youtube that is difficult is finding reliable, consistent videos that cover the exact information that I need and present it in a very memorable way. I have watched the three videos on the heart. They are excellent. I must commend you on your instructional techniques as they are proving invaluable for me. Thankyou so much. I will be looking for other videos that you post. I have a lot of learning to do. keep up the GREAT work and thank you.

i just spent 20 mins and I learned so much more than listening to 3 hour lecture from my other class...thank you Dr. Campbell for your easy to understand heart anatomy

This video was easy to follow, and I truly appreciated the heart diagram. Saved me many hours of studying!

I worked in cardiac post surgery service in France (réanimation cardiaque = ICU) during 25 years before suspension ! Thanks for your class, it made me happy to hear it in your own language i love!

I was looking for videos from native speakers to improve my listening and pronunciation in medical English and I found much more than it in your videos, by appreciating the way you do it! Congratulations! Thank you so much!

This is the best explanation i have ever seen for the cardiovascular system thank you ❤️

I first saw this video in my friend's phone and it was awesome,I had to come and search on KZfaq for this amazing video. This video help me alot during my cardiovascular CA,and I don't read textbooks on this topic,I just go directly to this video and follow you. Thank you doctor for this amazing video,you are indeed a savior of young students struggling with their studies.🙏🙏🙏

Wow! Ur making my anatomy and physiology more simpler. Thanks doctor

I am enjoying this lecture for it is more understandable to me than reading books. I am a radiography student in Ghana. Thank you Doctor.

Amazing teaching capacity of Dr.John Campbell, always remembers me the great thought of Albert Einstein-"The supreme art of the teacher is waken the joy in the expression and the science." May God bless you !

For the first time in my life I have never been under this kind of teaching this is interesting ❤ from Zambia 🇿🇲

Just like one of the Christian hymns sings; “I was once lost, but now I’m found” Thanks so much Dr. John Campbell, this video is indeed an ALL IN ONE lesson. I can proudly say I know the Ana-Physio of the cardiovascular system.

Wow; thank you for taking the time to educate all of us up-and-coming medical professionals, and in such a clear, concise, yet informative manner. As many people have already noted, I feel like hours worth of reading can't hold a candle to this lecture.

Dr. Campbell, thank you very much for your videos. I've used this one in my Medical English class with the students studying General Medicine. Their knowledge of English is not very good, but they really enjoyed watching and listening, and I asked them to take notes, and I asked them questions to check their understanding. My students like your way of presenting the material, the way you draw and explain, and summarize. They are so happy when they hear and understand the Latin terms, because they have a lot of hours of Latin (anatomical and clinical terminology, Latin in prescriptions, etc). Next week we are watching the video about the urinary system and the kidneys. Your videos are of much help and they really encourage my students' interest.

Wow, the heart ❤️ an amazing organ! And 7 years ago today, Dr Campbell was already sharing his knowledge of medicine in a simple way. Thank you Doc. 🙂💯👍🏼

Dr Campbell you are absolutely the BEST! Your teachings are very easy to understand and comprehend! I can't thank you enough! Much love and gratitude

wish this guy was my anatomy lecture so easy to understand, love his method of teaching!

He is a nice teacher + doctor . And save a lot of time . He explained the 2 min study in just 21 minutes. Thanks for teaching us .

For me you are the best Dr. I have seen video,sit in classes yet nothing comeout But here gives clearly view and better understanding Thank you so much From nigeria

Dr John Campbell, you are such a good teacher. Thank you so much for sharing. We need more doctors like you. GOD Bless you and yours.

Dr. Campbell, I have just recently discovered your channel when I watched your lectures on the physiology of wound healing. I want to express how wonderful it was to learn that you have a massive and broad collection of content amassed over the past eight years (that I will be exploring whenever I have the chance) and furthermore relieved to see that you are still making videos even today! As an aspiring medical student, I want to extend my gratitude for your hard work that goes in to making these videos, as well as your wonderful style of in depth teaching. Undoubtedly, the knowledge and insight from your videos will prove invaluable for the difficult path to becoming a physician.

I've watched you on your updates on coronavirus, and now you're here helping me pass my 1st year composition exams for a masters of science in acupunture! You're the best Dr. campbell! A gem!

just found your channel, and finally understand the heart structure, thank you so much.

Finally ,it’s so simple and it seemed really complicated in the classroom. Thanks so much Dr🙏🏼😊

your teaching will never be erased in my mind............

It's a good way to explain how the heart works. I took a class for one month and didn't understand a thing about heart I paid $300 for anatomy class. You taught me this information for free and it went straight to the heart. Thank you will be very small word what you have done for those who wants to learn

You're gifted DR. so simple, but great and straightforward. I like this.

I’m barely in high school and I know I want to be a heart surgeon. I made my mind even if it takes a long time. This means I get to help save peoples lives who are at huge risk and heart disease is #1 killer. It’ll be a rough journey but I know I have what it takes and I’ll try my best! I am learning and need improvement so these videos help me study. I already got into a health academy so I’m off to a great start :D thank you, sir, for your videos!

You’re and angel Dr. Campbell. Wow, breathtaking, I wish you were my anatomy professor! Thank you for this amazing video, truly appreciated! We need more professors like you! Teach with a passion! ❤️

I’m impressed by the way he teaches! I only wish I had you for my professor! I can only imagine that.

This has made my cardiovascular system journey a lot easier. Wow! Thank you Dr.

Thank you Doctor, you really taught all I needed to know about the heart. I appreciate you taking your time to offer this lecture. God bless you and your family

Who are watching this video in Coronavirus lock down period. If yes like.

Dr Campbell makes it so clear & easy to understand. I'm so glad that I found his videos! His English accent is so pleasant to the ear.

Learned this quicker than sitting in a class room for HOURS . thank you very much!!! Quickest , easiest descriptions of everything. You did the damn thing with this one doc ! 😅

Beautifully explained ! A-level bio class revisited successfully. Extremely thorough, superb explanation. I'm going to go through all your videos ! Thanks Doc !

The video was amazing! It goes through the major parts, valves, and the blood flow through the heart. I learned many new things about the layers, and it was a good review for me about the blood flow. You did a remarkable job doctor, thank you for sharing your knowledge!!

Thank you sooo much Dr. now I finally understand how the heart works.😭😭 I want to cry. Thank you so much! God bless you Dr. Campbell.

Thank you for your clear and concise teaching, John. Great content and easy to understand.

I wish KZfaq had been around when I was in college. This could have been so helpful to me! I really love your vides, Dr. Campbell.

how amazing you are even five years old kid can understand your explanation, so simple so clear Thank you so much.

I'm a nursing student and about to sit my exam in 4 days, thank you Dr. John Campbell for making this easier for me to understand. Your teachings are succinct than my lecturer in Human Bioscience haha. Kudos to you!

My baby girl has Tetralogy of Fallot and she’s had one open heart surgery so far. I’m trying my best to learn and understand the way the heart functions. I’ve watched so many videos and I’ve had so many doctors explain it to me but this video is by far the most informative and helpful video I’ve ever watched. I now understand how the healthy heart functions. Now I’m able to go watch the ToF heart videos and understand the difference! Thank you so much from the bottom of my heart (no pun intended 😂). I really do appreciate this amazing video x

doctor ur lectures are always a come back for me when ever I don't understand lectures. and at the end of the day. am a proud licensed Nurse. thank you so much sir.

Thank you Dr. Campbell!! My 2 hour lecture today left me feeling helpless and confused. This video has given me confidence again with my understanding of the cardiovascular system! Thank you, thank you!

Dr john thought me my paramedic course, iv never met him but his online videos have thought me so much. I have a great understanding of anatomy and physiology which helps me preform my job with confidence. Thanks Dr john your simply the best ❤️🤗

This is much better i must say far off better any other biology teacher explaining the anatomy of heart it's so easy to understand and grasp !

Thanks Dr. Campbell. I've been watching your non-Covid related videos and learning a lot.

Thank you so much for taking the time to make these videos. I truly understand the heart better than I did in the hour-long lectures.

I have been struggling to find videos on youtube that can help me improve my Human anatomy knowledge...here I am on your channel Wow, thank you Dr.John Campbell because I have learnt something today.

You’re the greatest teacher I’ve ever met thank you so much for being such wonderful teacher. I’m glad you are enjoying your time with your students.

I feel more educated on this in just these few minutes unlike the one week I spent in class learning this... Thank you Doc 🙏

This is the best ever cardiovascular system lecture I’ve watched on KZfaq; Thanks a lot.

It’s always a delight and refreshing to revisit cardiac anatomy clearly explained. I struggled distinguishing btwn bicuspid and tricuspid until I finally associate tricuspid being on the right chamber by tri to be right. Thank you Doc

The very clear and precise explanation to understand all concepts of the vascular cardiac system in just 10mins.Thanks very much, sir. ❤

This Is The One Of The Most Complex Structures Of The Human Body , Presented In The Most Simple Terminology ... Awesome Job Sir. ❤

I have never learn as much about the heart in 20 min in my life!! Dr Campbell thank you so much for this amazing lecture and making the anatomy simple!:)

Thank you for this video Dr. Campbell!! This presentation was made plain and simple!

Dr john Campbell ...what a great lecturer and thank you for making me much understand about heart ..

The way of teaching is understandable with simple words....and I have to mention only one thing.. "THANK YOU SIR"

This helped me to understand every bit of the circulatory system in Anatomy and Physiology for L 3 fitness. Thank you Dr. John.

Been going through my notes and struggling to understand, listened to this video and the green light turned on. Thank you so much Dr. Simplified everything for me

I graduated from nursing school through this channel...Anatomy made it so easy. So thankful to you doc🙏.

Many thanks Dr .you deserve high praise.In a shorter span of time you have provided the significant knowledge about the most important tissues and organ ie.....heart. many thanks .

And now I can say I'm confident at this stuff . thx is not enough ❤️❤️

I seriously wish you were my teacher sir. Also a tremendous thank you for your effort in this video. Most professors donot spare any time for their students, let alone make a video, for free. Thank you so much sir. Edit: Typo

as someone who wants to study nursing this has just helped a lot .

Dr. John, heartfelt thanks for such a heart-full, comprehensive, absolutely clear explanation of heart anatomy. You made it so simple to understand for any age! 👌🏼🙏🏼

Sir I am just 13 from India my aim is to be a doctor . I think so ur coaching will make my dream true. thank you so much .

I was about to cry I watched 5 videos and learned nothing the this came and I’m so glad I clicked thank you dr

Dr. John, thank you for your way of teaching ; you made it easy to understand. Easy and understandable precise lecture. Thank you again.

One of the best biology classes I ever had.Thank you Dr.john

OMG!!!! What a lecture!!! Excelent presentation, easy to understand and to remember for life. Thank you very much.

The best explanation ever!

Brilliant explanation. As someone who has a leaky mitral valve I definitely understand the heart layout more now.

I like these lectures a lot. It even inspired me to write a poem. Searching the Heart for You Where does my love for you sleep? Is it divided between the ventricles, great chambers of the left and right, or resting in the gardens of an atrium? I have stood at every valve searching. Tricuspid, mitral, pulmonary, at no valve do you flow through and yet I know you in my blood. Did you hide in one of the arteries, unable to handle being watched? Are you in the crowded aorta, surfing silently upon my red cells? I know not even the color of our love. A vivid red? A frigid blue? If I only knew how well it breathes. May it never be choked for air. Though I doubt it ever could. You are, after all, my oxygen. If I cannot find you swimming here, perhaps it is only because you are everywhere. Searching the Heart for You Where does my love for you sleep? Is it divided between the ventricles, great chambers of the left and right, or resting in the gardens of an atrium? I have stood at every valve searching. Tricuspid, mitral, pulmonary, at no valve do you flow through and yet I know you in my blood. Did you hide in one of the arteries, unable to handle being watched? Are you in the crowded aorta, surfing silently upon my red cells? I know not even the color of our love. A vivid red? A frigid blue? If I only knew how well it breathes. May it never be choked for air. Though I doubt it ever could. You are, after all, my oxygen. If I cannot find you swimming here, perhaps it is only because you are everywhere.

I am so thankful Professor for your explanation of the anatomy of the heart ! You makes it s easy to understand . I have been trying to remember the names of the valves for years and always have to keep going back to recap , but now with your explanations I can now know these

Thank you Dr John, your explanation is amazing and easy to understand , I understand so much as you explained well, I am first year nursing student and I appreciate you shared your valuable knowledge. Thank you

I passed my basic science exam 🎉just by watching this video😊thank you so much my brother 🙏 ❤ God bless you

Thank you so much for this video that explains the heart in simple terms and why the parts are called what they are. Great video!