I just started a Master of Science program in Forensic Science and one of my classes this semester is Death Analysis. One chapter in the textbook is about deaths due to natural diseases; and about 20 pages of that chapter are about cardiovascular diseases. I read and re-read nothing stuck in my head... until I watch this video. Thank you so much.
Khan, I am a vet student, I already finished studying pathology. and I ACTUALLY learn something new here! You are the most awesome teacher in the world.
My six year old LOVES to watch this! :) My husband is watching them for school and our son watches it with him. He stopped the video and said, "STOP! I have to draw that heart and label it!" Thank you!
i liked this video. you were very clear and straight forward. Helped me understand better than all these texts books. using simple english helped a million.
adam jazzar Cheers for the Video clip! Excuse me for chiming in, I would love your thoughts. Have you tried - Trentvorty Lively Heart Theorem (erm, check it on google should be there)? It is an awesome one off product for curing heart attack without the headache. Ive heard some unbelievable things about it and my best friend Jordan at last got astronomical results with it.
adam jazzar Kudos for the Video clip! Excuse me for butting in, I am interested in your opinion. Have you researched - Trentvorty Irreplaceable Doctor Theorem (search on google)? It is a great one off guide for curing heart disease minus the normal expense. Ive heard some pretty good things about it and my best friend Jordan at last got excellent results with it.
adam jazzar Great Video clip! Apologies for butting in, I would love your thoughts. Have you heard about - Trentvorty Irreplaceable Doctor Theorem (search on google)? It is a good one of a kind product for curing heart disease without the normal expense. Ive heard some decent things about it and my work buddy at last got astronomical results with it.
@khanacademy thank you for taking the time to answer my maybe stupid question, I was just wondering because I wanted to do some anatomy-related videos.
@yamenhawit Heart Disease, Coronary Artery Disease and Coronary Heart Disease are all the same thing. Heart failure may occur because of heart disease.
Perhaps the most interesting research coming out on prevention of heart disease is the study published two weeks ago by the journal CIRCULATION of the American Heart Association. This 10 year NIH funded study found a 48% reduction of heart disease in people who were taught Transcendental Meditation. The control group used the standard education program. This finding was even more significant when looking at those who were most regular with their twice a day practice--66% in that group.
I wish I had Khana Academy on a radio station, so I could listen to him every morning! Thanks for the informative videos Sal. Keep up the good work :) .
This video is absolutely excellent at describing the heart and its potential problems. It is clear, informative, and totally accurate. Thanks for the great post. Do you mind if I copy and past this to my heart document that I send out for free. I would love to have people see this.
This video is awesome! One of my professors showed this in class. It is very easy to understand, and it helped me to clear up my misconceptions about certain heart disease related terms.
Excellent, excellent video. Only main issue I have (I'm a medical student) is that the LCA is not commonly blocked; the main artery occluded is the Left Anterior Descending artery (LAD), which is a BRANCH of the LCA (which is actually quite short).
Little point of correction Sal, the RCA and LCA are 'higher-up' closer to the aorta. In the video RCA is actually right marginal artery, a branch of RCA. LCA is left anterior descending artery, a branch of the LCA.
dude, i hate school. but if you opened up your own university and taught and made professors just like you that explain these hard to understand concepts back into a living, breathing concept, i would go to school indefinitely - if it wasn't for you, i'd be failing nursing school - thank you!!!!!!!
Me again. Most myocardial infarctions are caused by plaque rupture, not by embolic plaques that block arteries downstream. A cardiac arrest is due to an acute, abnormal fast heart rhythm such as ventricular tachycardia or ventricular fibrillation. The heart doesn't "stop" but beats so very fast that it doesn't fill or pump sufficiently to support the circulation and unless treatment ensues, a person would die. Heart failure is when the pump backs up, unable to keep up with the body's needs.
Well I was diagnosed with a silent heart attack last year by my cardiologist Dr. Richard Charney. I had a defibrillator implanted in my chest and recently stopped smoking being on Chantix. I'm also taking 4 different medications a day. This silent heart attack took place somewhere in the summer of 1998 or 1999, sudden awakened by fluids filling up in my lungs and couldn't breathe. I ran to the kitchen sink and vomited everything from my lungs within 15 to 20 seconds. A very scary experience.
@Ferrus91 CHF occurs when heart muscle is too weak to pump out enough blood at one go. What then happens is that the sheer volume of blood backup overloads the heart and lungs (hence "congestion"). Heart failure by definition is the inability of the heart to maintain adequate output - so CHF = heart failure due to blood backup into the heart and lungs.
being a heart patient I learned so much on here and wonder if I actualy had a heart attack. I had quad bypass and I had 90% blockage in all my arteries. nothing broke loose so I had angina but according to this video it is not a heart attack until you have thrombosis which a section of you heart dies. one of my bypasses collapsed later and had pain again and they added a stent. I was told I had a heart attack twice. This says it was just warning angina pains. guess some say it is some say no.
@6:25 you use the term thrombosis to refer to a blockage caused by traveling clot. While "thrombosis" is technically correct, it is perhaps better to refer to this as "thromboembolus" (or some variation depicting the embolic mechanism).
Thrombosis is the formation of a blood clot inside a blood vessel. Atherosclerosis is a build up of 'plaque' in your vessels. Blood clotting may become more prevalent in people who have Atherosclerosis, because the blood vessels have narrowed. Thrombosis can occur for many reasons however c.f. Deep Vein Thrombosis
Is it legal to use these images in this video? I know there are free/cc anatomical illustrations, but they would have to be attributed... Not wanting to accuse anyone, just raising awareness of a potential problem.
This video, "What happens during a heart attack?", explains it a tiny bit differently. The plaque bursts and the RBCs start sticking to the "wound" and do so continuously until they clog up the artery; unlike here where you're saying that a piece of the plaque bursts off and as it flows through the artery, the RBCs start sticking to it until it gets stuck somewhere down the artery. So... which is it? /:/
sal instead of anatomy which is pretty easy once you have a picture book... would you guys consider PHYSIOLOGY OF THE BODY.... LUNGS, KIDNEYS, HEART, WITH ALL THE HORMONES AND DETAILS...
Once i had a chest pain, really spiking and vague. I thought it was heart, but it was nowhere near. A doctor explained that it was a spinal nerve inflammation, and it was not a big deal. So if you are experiencing a chest pain, DO NOT self-medicate. Because it might be a very different cause. Just go visit a licensed doctor.
Not too long ago, my pops suffered from cardiac arrest. Soon after prosperous procedure, the vital thing physician recommended him to step away by slimy junk food and take fresh fruits. Apart from this caring he recommended a book which we bought online through goo.gl/ypLjhR. Have a look and acknowledged a number of hardheaded precautionary methods in addition to fat loss program with regard to cardiovascular affected person.
Careful study discovered only a very self-effacing benefit, so researchers have moved on to estimate more promising approaches, including: 1. giving more highly selected stem cells from a donor around the time of a heart attack 2. giving a patient’s own cardiac stem cells late after a heart attack 3. giving highly selected, non-cardiac, stem cells from a donor later after a heart attack Check some more here www.doctorbing.com
@towldryer stroke an atherosclerosis have in common... but it is just happening in the brain, but the causes may or may not be same as atherosclerosis... it can be thrombosis anywhere in the body which can cause emboli that can be lodge in any small vessels in the brain which can cause ischemia or even hemmorage (if ruptured)
So if the oxygenated blood does not reach its intended end point, is the oxygen used by the last receiving vessel? Or is some oxygenated blood sent into the vein? Separately, if you have a partial heart block isn't damage being done to the arterial structure through the re-routing?
@RespectMyHate Depends on the meat and where you get it. If you are getting bacon and sausages from McDonalds then of no doubt its full of saturated fats that are bad for you. But if you are making home made chicken or something its not bad at all and is actually good for you
I watched a PBS special that said that the majority of these arterial blockages are from the plaques erupting. The loose traveling "emboli" are less common.
Great video can U please answer a question . My baby boy Aydin .Had a switch valve operation .. After 10 days his artery got blocked..And he suffered a heart attack the doctor did not give him ..Any hope ..They would not not perform any more surgery..For sure it would kill him ..But has been 16 days and he is getting stronger and putting on wait ..he was 1.8 kg now 2.4 ,kg how is he surviving ..will the artery that is blocked open on its own ..will the heart muscle heal ..Thank U .. doctor s don't give me anything thing in writing ..I'm like a dead man walking in shock ..please answer my questions..!
turan bagatur aye man tell you some Tips I can tell you he needs to take fish oil for starters then c0 Cu or 10. Then you j use adderall so this is is on a safety website. So feel j want more u can add Last thing ls tyrosine on lt now for adderall dopamine supports dopamine production I hope you got something out of this in just reply is if found this helpful messiage me back hope I could help and keep giving you more optiofnsnd👌🏼
I just started a Master of Science program in Forensic Science and one of my classes this semester is Death Analysis. One chapter in the textbook is about deaths due to natural diseases; and about 20 pages of that chapter are about cardiovascular diseases. I read and re-read nothing stuck in my head... until I watch this video. Thank you so much.
I didn't understand this subject before watching this video. Very good and clear explanation. Thank you.
@SalsaTiger83 The right two images are in the public domain and I attribute the left-most one in the description
Khan, I am a vet student, I already finished studying pathology. and I ACTUALLY learn something new here!
You are the most awesome teacher in the world.
Suddenly I can feel my heart pumping in my chest very clearly.
another 10 minutes of my life not wasted...
Thank you Mr. Khan...
Your videos are gonna help me pass my finals.. THANK YOU!
My six year old LOVES to watch this! :) My husband is watching them for school and our son watches it with him. He stopped the video and said, "STOP! I have to draw that heart and label it!" Thank you!
i recommend this you tube page for those still in school , if your over 25 your supposed to know this
clear nd breif and totally awesome explanation...........
i liked this video. you were very clear and straight forward. Helped me understand better than all these texts books. using simple english helped a million.
You are amazing. A Renaissance man that knows a lot about everything.
Great class! Im a nurse student and you have made clear to me in 10 min what my tutors are trying to explain in 4 classes.
Wonderful video! Now I understand what Coronary Artery Disease is!
2 hours of biology class summed up in 10 minutes
adam jazzar Cheers for the Video clip! Excuse me for chiming in, I would love your thoughts. Have you tried - Trentvorty Lively Heart Theorem (erm, check it on google should be there)? It is an awesome one off product for curing heart attack without the headache. Ive heard some unbelievable things about it and my best friend Jordan at last got astronomical results with it.
adam jazzar
adam jazzar Kudos for the Video clip! Excuse me for butting in, I am interested in your opinion. Have you researched - Trentvorty Irreplaceable Doctor Theorem (search on google)? It is a great one off guide for curing heart disease minus the normal expense. Ive heard some pretty good things about it and my best friend Jordan at last got excellent results with it.
adam jazzar Great Video clip! Apologies for butting in, I would love your thoughts. Have you heard about - Trentvorty Irreplaceable Doctor Theorem (search on google)? It is a good one of a kind product for curing heart disease without the normal expense. Ive heard some decent things about it and my work buddy at last got astronomical results with it.
lol lol lol right
@khanacademy thank you for taking the time to answer my maybe stupid question, I was just wondering because I wanted to do some anatomy-related videos.
@yamenhawit Heart Disease, Coronary Artery Disease and Coronary Heart Disease are all the same thing. Heart failure may occur because of heart disease.
Perhaps the most interesting research coming out on prevention of heart disease is the study published two weeks ago by the journal CIRCULATION of the American Heart Association. This 10 year NIH funded study found a 48% reduction of heart disease in people who were taught Transcendental Meditation. The control group used the standard education program. This finding was even more significant when looking at those who were most regular with their twice a day practice--66% in that group.
I wish I had Khana Academy on a radio station, so I could listen to him every morning! Thanks for the informative videos Sal. Keep up the good work :) .
This video is absolutely excellent at describing the heart and its potential problems. It is clear, informative, and totally accurate. Thanks for the great post. Do you mind if I copy and past this to my heart document that I send out for free. I would love to have people see this.
This video is awesome! One of my professors showed this in class. It is very easy to understand, and it helped me to clear up my misconceptions about certain heart disease related terms.
Excellent, excellent video. Only main issue I have (I'm a medical student) is that the LCA is not commonly blocked; the main artery occluded is the Left Anterior Descending artery (LAD), which is a BRANCH of the LCA (which is actually quite short).
Thanks for this! enjoyed it very much. you make it sound less complicated. thanks!
Thanks for the new medical videos! I was wondering when you were going to start going from transition from bio videos to medical bio videos.
This was a nice review. Very clear and concise. Love all your tutorials.
Now that I watched this and feel somewhat enlightened about the terminology, next dr appt i am so ready with all my questions!
Little point of correction Sal, the RCA and LCA are 'higher-up' closer to the aorta. In the video RCA is actually right marginal artery, a branch of RCA. LCA is left anterior descending artery, a branch of the LCA.
wonderful and simple to understand to any layman.... great video THANKS!!!
Hey Sal, you should do a series of videos for MCAT prep
Your latest bio videos have been very informative.
@SalsaTiger83 These are under creative-commons licenses. Got them from wikipedia.
You were clear, simple and actually fun to listen to.. thank you and keep up the good work:)
dude, i hate school. but if you opened up your own university and taught and made professors just like you that explain these hard to understand concepts back into a living, breathing concept, i would go to school indefinitely - if it wasn't for you, i'd be failing nursing school - thank you!!!!!!!
This guy has ridiculously good writing on a computer.
thank you, thank you!! spe cially extra thanks for the clarification of the myocardial infarction, heart failure and cardiac arrest !!
yay more biology videos! i'd like to see that play list grow!! Vids on adaptive immune systems= really saved me for my midterm, thanks Sal!
Another great video!! I like the A & P videos.
Awesome video, helped me tremendously
Wow. We're actually doing this right now in class!
Thanks
Khan Academy lectures r very effective
Sal, you should also add the fact that regular consumption of McDonalds is a leading factor to heart attacks
Thank you so much, You are explained very clear
Nice explanation 👌
Simply super
And plz make a graphical vedio plz
🙏🙏
24 not like this video ? why ? this is great video and educational!
very good video for students
Me again. Most myocardial infarctions are caused by plaque rupture, not by embolic plaques that block arteries downstream. A cardiac arrest is due to an acute, abnormal fast heart rhythm such as ventricular tachycardia or ventricular fibrillation. The heart doesn't "stop" but beats so very fast that it doesn't fill or pump sufficiently to support the circulation and unless treatment ensues, a person would die. Heart failure is when the pump backs up, unable to keep up with the body's needs.
This is a great video!!!!!!!!!! Thanks for clarify how those are all related yet different!
Excellent how little waffle there is, and how you get just to the point, in your videos!
Well I was diagnosed with a silent heart attack last year by my cardiologist Dr. Richard Charney. I had a defibrillator implanted in my chest and recently stopped smoking being on Chantix. I'm also taking 4 different medications a day. This silent heart attack took place somewhere in the summer of 1998 or 1999, sudden awakened by fluids filling up in my lungs and couldn't breathe. I ran to the kitchen sink and vomited everything from my lungs within 15 to 20 seconds. A very scary experience.
@Ferrus91 CHF occurs when heart muscle is too weak to pump out enough blood at one go. What then happens is that the sheer volume of blood backup overloads the heart and lungs (hence "congestion"). Heart failure by definition is the inability of the heart to maintain adequate output - so CHF = heart failure due to blood backup into the heart and lungs.
being a heart patient I learned so much on here and wonder if I actualy had a heart attack. I had quad bypass and I had 90% blockage in all my arteries. nothing broke loose so I had angina but according to this video it is not a heart attack until you have thrombosis which a section of you heart dies. one of my bypasses collapsed later and had pain again and they added a stent. I was told I had a heart attack twice. This says it was just warning angina pains. guess some say it is some say no.
@6:25 you use the term thrombosis to refer to a blockage caused by traveling clot. While "thrombosis" is technically correct, it is perhaps better to refer to this as "thromboembolus" (or some variation depicting the embolic mechanism).
Thrombosis is the formation of a blood clot inside a blood vessel. Atherosclerosis is a build up of 'plaque' in your vessels. Blood clotting may become more prevalent in people who have Atherosclerosis, because the blood vessels have narrowed. Thrombosis can occur for many reasons however c.f. Deep Vein Thrombosis
LOVE, LOVE, your new uploads!
Is it legal to use these images in this video? I know there are free/cc anatomical illustrations, but they would have to be attributed... Not wanting to accuse anyone, just raising awareness of a potential problem.
thnx wonderful explain👍
This video, "What happens during a heart attack?", explains it a tiny bit differently. The plaque bursts and the RBCs start sticking to the "wound" and do so continuously until they clog up the artery; unlike here where you're saying that a piece of the plaque bursts off and as it flows through the artery, the RBCs start sticking to it until it gets stuck somewhere down the artery. So... which is it?
/:/
excellent video.
Very informative lecture. Thank you
awesome sal! thank you and keep up the a and p videos!!!!!
Thank you Khan!
Thanks so much ,you have my notes to be meaningful to me.
sal instead of anatomy which is pretty easy once you have a picture book... would you guys consider PHYSIOLOGY OF THE BODY.... LUNGS, KIDNEYS, HEART, WITH ALL THE HORMONES AND DETAILS...
Once i had a chest pain, really spiking and vague.
I thought it was heart, but it was nowhere near.
A doctor explained that it was a spinal nerve inflammation, and it was not a big deal.
So if you are experiencing a chest pain, DO NOT self-medicate.
Because it might be a very different cause.
Just go visit a licensed doctor.
I love how this dude leaves no room for ambiguity.
This is a great video. Thanks.
i love how medical stuff has real wierd names,, i think i rather learn chemister terminology nice vid sal
Very helpful video!!!
Not too long ago, my pops suffered from cardiac arrest. Soon after prosperous procedure, the vital thing physician recommended him to step away by slimy junk food and take fresh fruits. Apart from this caring he recommended a book which we bought online through goo.gl/ypLjhR. Have a look and acknowledged a number of hardheaded precautionary methods in addition to fat loss program with regard to cardiovascular affected person.
What is the difference between this video and your other regarding Heart Disease and heart attacks?
Very very helpful ...thank you
Wonderful!!!!
This helped me so much! Great video
Really Informative One...
Careful study discovered only a very self-effacing benefit, so researchers have moved on to estimate more promising approaches, including:
1. giving more highly selected stem cells from a donor around the time of a heart attack
2. giving a patient’s own cardiac stem cells late after a heart attack
3. giving highly selected, non-cardiac, stem cells from a donor later after a heart attack
Check some more here www.doctorbing.com
thank you
Dear Khan, Can You make a Video based on Systole & Diastole ?? Greetings from Sweden
As far as I know, the lipids on the wall of the vessel ruptures instead of breaking off? Is that right, or it could be both?
Your videos are great! Make so much sense to me :-)
good job, thank you from Morocco
I'm gonna eliminate heart disease before age 30.
@towldryer stroke an atherosclerosis have in common... but it is just happening in the brain, but the causes may or may not be same as atherosclerosis... it can be thrombosis anywhere in the body which can cause emboli that can be lodge in any small vessels in the brain which can cause ischemia or even hemmorage (if ruptured)
So if the oxygenated blood does not reach its intended end point, is the oxygen used by the last receiving vessel? Or is some oxygenated blood sent into the vein? Separately, if you have a partial heart block isn't damage being done to the arterial structure through the re-routing?
Very good video!
Thank you so much for the video!
It was very helpful thank you
@RespectMyHate Depends on the meat and where you get it. If you are getting bacon and sausages from McDonalds then of no doubt its full of saturated fats that are bad for you. But if you are making home made chicken or something its not bad at all and is actually good for you
I get those chest pains you talked about. Im scared now. Am i going to have a heart attack someday?
I thought the plaque erupts, then forms a clot. then the clot itself breaks off and blocks the blood flow. Instead of the plaque falls off?
I watched a PBS special that said that the majority of these arterial
blockages are from the plaques erupting. The loose traveling "emboli" are less common.
Uncle Barr I see. Can you link me the video if possible? Thanks
Thank you ! this is helping me a lot !!!
You're awesome!
Doesn't heart failure happen after a heart attack, so it wouldn't be an indication that a heart attack is coming would it?
thank you so much for this video
Genius!
@RespectMyHate Exercise is excellent for good health, but being a vegetarian doesnt help much. Doesnt hurt either though.
very beautifull.
Great video!!!
This is a Good lecture! =)
Would stable angina show up on an EKG?
This is a great, Thanks for u
Hi How can i use this for a documentary i am making on cardiovascular disease thank you
wat tablet do you use?
Great video can U please answer a question . My baby boy Aydin .Had a switch valve operation .. After 10 days his artery got blocked..And he suffered a heart attack the doctor did not give him ..Any hope ..They would not not perform any more surgery..For sure it would kill him ..But has been 16 days and he is getting stronger and putting on wait ..he was 1.8 kg now 2.4 ,kg how is he surviving ..will the artery that is blocked open on its own ..will the heart muscle heal ..Thank U .. doctor s don't give me anything thing in writing ..I'm like a dead man walking in shock ..please answer my questions..!
turan bagatur aye man tell you some
Tips I can tell you he needs to take fish oil for starters then c0
Cu or 10. Then you j use adderall so this is is on a safety website. So feel j want more u can add Last thing ls tyrosine on lt now for adderall dopamine supports dopamine production I hope you got something out of this in just reply is if found this helpful messiage me back hope I could help and keep giving you more optiofnsnd👌🏼