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Alila Medical Media
United States
Registrace 1. 01. 2014
We are known for producing simple and clear mini lectures, perfect for students, teachers and patient education. You are welcome to post a link to or embed (using CZcams embed function) our CZcams videos on your websites or for lecture presentation - In this case your viewers essentially watch the videos on our CZcams channel, with ads. If however you need to download the videos for independent uses, you should purchase a license from our website: www.alilamedicalmedia.com/ You will get to download non-watermarked videos with license purchase.
NEW! Check out ALILA ACADEMY - courses made entirely of our videos (no watermark) - the most affordable way for you to use our videos in teaching/learning: www.alilaacademy.com/
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment.
NEW! Check out ALILA ACADEMY - courses made entirely of our videos (no watermark) - the most affordable way for you to use our videos in teaching/learning: www.alilaacademy.com/
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment.
Cardiac Conduction System and Understanding ECG/EKG - Updated 2024, Animation
Cardiovascular Physiology. Electrical Conduction Through the Heart and How Different Segments and Waves of the EKG (ECG) are Generated.
This is an updated version of our hugely popular video of the same name.
Purchase a license to download a non-watermarked version of this video here: www.alilamedicalmedia.com/-/galleries/narrated-videos-by-topics/ekgecg/-/medias/e912233a-cfb5-11e3-bc90-329e81129ea7-cardiac-conduction-system-and-ecg-anatomy-narrated-video
Purchase PDF (video text + images) here: www.alilamedicalmedia.com/-/galleries/pdf-video-scripts-with-images/cardiology/-/medias/342aff65-93af-4005-86e6-c1f9987a5a9f-cardiac-conduction-system-3-pages-2-images
Check out our new Alila Academy - complete video courses with quizzes, PDFs, and downloadable images, here: www.alilaacademy.com/courses/
Join this channel to get access to member-only videos and other perks:
czcams.com/channels/iTGKA9W0G0TL8Hm7Uf_u9A.htmljoin
©Alila Medical Media. All rights reserved.
Voice by Marty Henne
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment.
The cardiac conduction system consists of the following components:
- The sinoatrial node, or SA node, located in the right atrium near the entrance of the superior vena cava. This is the natural pacemaker of the heart. It initiates all heartbeat and determines heart rate. Electrical impulses from the SA node spread throughout both atria and stimulate them to contract.
- The atrioventricular node, or AV node, located on the other side of the right atrium, near the AV valve. The AV node serves as the electrical gateway to the ventricles. It delays the passage of electrical impulses to the ventricles, to ensure that the atria have ejected all the blood into the ventricles before the ventricles contract.
- The AV node receives signals from the SA node and passes them onto the atrioventricular bundle - AV bundle or bundle of His.
- This bundle is divided into right and left bundle branches which conduct the impulses toward the apex of the heart. The signals are then passed onto millions of Purkinje fibers and spread throughout the ventricles.
Electrical activities of the heart can be recorded in the form of an electrocardiogram, ECG or EKG. An ECG is a composite recording of all the action potentials produced by the nodes and the cells of the heart. Each wave or segment of the ECG corresponds to a certain event of the cardiac electrical cycle:
- When the SA node fires, electrical signals spread throughout the atria and cause them to depolarize. This is represented by the P wave on the ECG. Atrial contraction, or atrial systole, starts about 100 milliseconds after the P wave begins.
- The PR interval, which measures from the start of P wave to the start of QRS complex, represents the time between atrial depolarization and ventricular depolarization, and reflects the conduction through the AV node.
- The QRS complex represents ventricular depolarization:
- Q wave corresponds to depolarization of the interventricular septum.
- R wave is produced by depolarization of the main mass of the ventricles.
- S wave represents the last phase of ventricular depolarization toward the base of the heart.
- Atrial repolarization also occurs during this time but the signal is obscured by the large QRS complex.
- The ST segment reflects the plateau of action potentials in the ventricles. This is when the ventricles contract and pump blood.
- The T wave represents ventricular repolarization immediately before ventricular relaxation, or ventricular diastole. Because the rate of repolarization is slightly different for the 3 layers of the heart wall, the peak of T wave reflects repolarization of epicardial cells, while the end of T wave corresponds with repolarization of mid-myocardial cells.
The cycle repeats itself with every heartbeat.
This is an updated version of our hugely popular video of the same name.
Purchase a license to download a non-watermarked version of this video here: www.alilamedicalmedia.com/-/galleries/narrated-videos-by-topics/ekgecg/-/medias/e912233a-cfb5-11e3-bc90-329e81129ea7-cardiac-conduction-system-and-ecg-anatomy-narrated-video
Purchase PDF (video text + images) here: www.alilamedicalmedia.com/-/galleries/pdf-video-scripts-with-images/cardiology/-/medias/342aff65-93af-4005-86e6-c1f9987a5a9f-cardiac-conduction-system-3-pages-2-images
Check out our new Alila Academy - complete video courses with quizzes, PDFs, and downloadable images, here: www.alilaacademy.com/courses/
Join this channel to get access to member-only videos and other perks:
czcams.com/channels/iTGKA9W0G0TL8Hm7Uf_u9A.htmljoin
©Alila Medical Media. All rights reserved.
Voice by Marty Henne
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment.
The cardiac conduction system consists of the following components:
- The sinoatrial node, or SA node, located in the right atrium near the entrance of the superior vena cava. This is the natural pacemaker of the heart. It initiates all heartbeat and determines heart rate. Electrical impulses from the SA node spread throughout both atria and stimulate them to contract.
- The atrioventricular node, or AV node, located on the other side of the right atrium, near the AV valve. The AV node serves as the electrical gateway to the ventricles. It delays the passage of electrical impulses to the ventricles, to ensure that the atria have ejected all the blood into the ventricles before the ventricles contract.
- The AV node receives signals from the SA node and passes them onto the atrioventricular bundle - AV bundle or bundle of His.
- This bundle is divided into right and left bundle branches which conduct the impulses toward the apex of the heart. The signals are then passed onto millions of Purkinje fibers and spread throughout the ventricles.
Electrical activities of the heart can be recorded in the form of an electrocardiogram, ECG or EKG. An ECG is a composite recording of all the action potentials produced by the nodes and the cells of the heart. Each wave or segment of the ECG corresponds to a certain event of the cardiac electrical cycle:
- When the SA node fires, electrical signals spread throughout the atria and cause them to depolarize. This is represented by the P wave on the ECG. Atrial contraction, or atrial systole, starts about 100 milliseconds after the P wave begins.
- The PR interval, which measures from the start of P wave to the start of QRS complex, represents the time between atrial depolarization and ventricular depolarization, and reflects the conduction through the AV node.
- The QRS complex represents ventricular depolarization:
- Q wave corresponds to depolarization of the interventricular septum.
- R wave is produced by depolarization of the main mass of the ventricles.
- S wave represents the last phase of ventricular depolarization toward the base of the heart.
- Atrial repolarization also occurs during this time but the signal is obscured by the large QRS complex.
- The ST segment reflects the plateau of action potentials in the ventricles. This is when the ventricles contract and pump blood.
- The T wave represents ventricular repolarization immediately before ventricular relaxation, or ventricular diastole. Because the rate of repolarization is slightly different for the 3 layers of the heart wall, the peak of T wave reflects repolarization of epicardial cells, while the end of T wave corresponds with repolarization of mid-myocardial cells.
The cycle repeats itself with every heartbeat.
zhlédnutí: 8 625
Video
NEW! INTERACTIVE VIDEO: Heart Sounds and Heart Murmurs
zhlédnutí 13KPřed 2 měsíci
Heart Sounds and Murmurs: with Listening Practice for Murmurs and Quiz Questions. This is a non-interactive version of the interactive project because CZcams does not support interactive video format, but you can access the interactive version in this link: www.alilamedicalimages.org/temp/heartsoundsexpriesmar23/index.html Hurry, the link expires Mar 23. However, all these interactive projects ...
Pharmacology: Oral Hypoglycemic Drugs, Animation
zhlédnutí 10KPřed 2 měsíci
Mechanisms of action of glucose-lowering oral medications for treatment of type-2 diabetes: sulfonylureas, meglitinides, metformin, thiazolidinediones, alpha-glucosidase inhibitors, DPP-4 inhibitors, and SGLT2 inhibitors. Purchase a license to download a non-watermarked version of this video here: www.alilamedicalmedia.com/-/galleries/all-animations/pharmacology-videos/-/medias/018dfe66-7192-7a...
NEW! INTERACTIVE VIDEO: Cardiac Conduction System and Understanding ECG (EKG)
zhlédnutí 9KPřed 3 měsíci
Electrical Pathway of the Heart; Anatomy of an ECG - How Each Wave and Segment are Related to the Events of the Cardiac Electrical Cycle, Interactive Animation. This is a non-interactive demo of the interactive project because CZcams does not support interactive videos, but you can see the interactive version in this link: www.alilamedicalimages.org/temp/cardiacconductionexpriesfeb25/index.html...
NEW! INTERACTIVE VIDEO: Heart Anatomy and Blood Flow
zhlédnutí 6KPřed 3 měsíci
The Pathway of Blood Flow through the Heart, Interactive Animation. This is a non-interactive demo of the interactive project because CZcams does not support interactive videos, but you can see the interactive version in this link: www.alilamedicalimages.org/temp/bloodflowexpriesfeb15/index.html but hurry, the link expires Feb 15. However, all these interactive projects are part of our courses ...
Pharmacology: Thrombolytic (Fibrinolytic) Drugs, Animation
zhlédnutí 11KPřed 4 měsíci
Thrombolytic therapy - mechanisms of action. Fibrin-specific agents: tissue plasminogen activator (tPA), alteplase, reteplase, tenecteplase; and non-fibrin-specific agents: urokinase (uPA), streptokinase and anistreplase. Purchase a license to download a non-watermarked version of this video here: www.alilamedicalmedia.com/-/galleries/all-animations/pharmacology-videos/-/medias/6357a9c8-f7dd-4a...
Hypermagnesemia: Causes, Pathophysiology, Symptoms, Diagnosis and Treatment, Animation.
zhlédnutí 7KPřed 4 měsíci
Magnesium distribution, metabolism, regulation of serum level; causes of magnesium imbalances, symptoms, diagnosis and treatment. Purchase a license to download a non-watermarked version of this video here: www.alilamedicalmedia.com/-/galleries/narrated-videos-by-topics/electrolyte-acid-base-balance/-/medias/9268cc2f-ef3a-4926-a83f-4a17bfa7ab01-hypermagnesemia-narrated-animation Purchase PDF (v...
Magnesium Metabolism and Hypomagnesemia, Animation
zhlédnutí 6KPřed 4 měsíci
Magnesium: functions, distribution, metabolism, regulation of serum level; causes of magnesium imbalances, symptoms, diagnosis and treatment. Purchase a license to download a non-watermarked version of this video here: www.alilamedicalmedia.com/-/galleries/narrated-videos-by-topics/electrolyte-acid-base-balance/-/medias/41442d9e-40bf-4972-8e8a-3545566d53e7-magnesium-metabolism-and-hypomagnesemi...
Meiosis, Animation
zhlédnutí 16KPřed 5 měsíci
Meiosis cell division; significance; phases of meiosis I and meiosis 2. #biology #genetics #cellbiology Purchase a license to download a non-watermarked version of this video here: www.alilamedicalmedia.com/-/galleries/all-animations/cell-molecular-biology-genetics-videos/-/medias/7787a050-ee21-4312-a242-c19aabe663a9-meiosis-narrated-animtion Purchase PDF (video text images) here: www.alilamedi...
Embryology: Development of the Placenta and Fetal Circulation, Animation
zhlédnutí 54KPřed 6 měsíci
Embryology: Development of the Placenta and Fetal Circulation, Animation
Thalassemia: Alpha & Beta-Thalassemias, Genetics, Pathophysiology, Diagnosis & Treatment, Animation
zhlédnutí 73KPřed 6 měsíci
Thalassemia: Alpha & Beta-Thalassemias, Genetics, Pathophysiology, Diagnosis & Treatment, Animation
Pharmacology - Antiepileptic Drugs, Animation
zhlédnutí 27KPřed 7 měsíci
Pharmacology - Antiepileptic Drugs, Animation
Embryology: from Fertilization to Gastrulation, Animation
zhlédnutí 202KPřed 7 měsíci
Embryology: from Fertilization to Gastrulation, Animation
Pharmacology: Drugs for Asthma and COPD, Animation
zhlédnutí 59KPřed 8 měsíci
Pharmacology: Drugs for Asthma and COPD, Animation
Pharmacology - Antidepressants, Animation
zhlédnutí 41KPřed 8 měsíci
Pharmacology - Antidepressants, Animation
Anatomy & Physiology of the Spleen, Animation
zhlédnutí 26KPřed 8 měsíci
Anatomy & Physiology of the Spleen, Animation
The Easiest Way to Learn, and Teach: A & P, ECG/EKG, and Cardiovascular Physiology.
zhlédnutí 29KPřed 9 měsíci
The Easiest Way to Learn, and Teach: A & P, ECG/EKG, and Cardiovascular Physiology.
Cell Structure and Functions, Animation
zhlédnutí 49KPřed 9 měsíci
Cell Structure and Functions, Animation
Stress Adaptation Response, Animation
zhlédnutí 17KPřed 10 měsíci
Stress Adaptation Response, Animation
Anatomy and Physiology of the Large Intestine, Animation
zhlédnutí 56KPřed rokem
Anatomy and Physiology of the Large Intestine, Animation
Anatomy and Physiology of the Adrenal Glands, Animation
zhlédnutí 78KPřed rokem
Anatomy and Physiology of the Adrenal Glands, Animation
Anatomy and Physiology of the Liver, Animation
zhlédnutí 113KPřed rokem
Anatomy and Physiology of the Liver, Animation
Anatomy and Physiology of the Stomach, Animation
zhlédnutí 77KPřed rokem
Anatomy and Physiology of the Stomach, Animation
Pharmacology: Lipid- Lowering Drugs, Animation
zhlédnutí 42KPřed rokem
Pharmacology: Lipid- Lowering Drugs, Animation
Pancreatitis, Acute and Chronic, Animation
zhlédnutí 65KPřed rokem
Pancreatitis, Acute and Chronic, Animation
Anatomy and Physiology of the Pancreas, Animation
zhlédnutí 105KPřed rokem
Anatomy and Physiology of the Pancreas, Animation
Pharmacology: Anticoagulants, Animation
zhlédnutí 109KPřed rokem
Pharmacology: Anticoagulants, Animation
Pharmacology: Antianginal Drugs, Animation
zhlédnutí 82KPřed rokem
Pharmacology: Antianginal Drugs, Animation
Permission to use this great video of yours for my presentation please? Thanks. I will give complete credits.
Thank You ❤
Thank You ❤
سبحان الله
why do sodium ions keep entering the axon during the action potential? if its facilitated diffusion, shouldn't the two sides reach an equilibrium? how comes there's a higher Na+ concentration inside the axon during the AP but more STILL enters? isn't that active transport against a concentration gradient? can't wrap my head around that bit
Very good
I can not understand at all.
I'm a cardiovascular pharmacologist, video is explicitly instructive and concise.
Sir muje bhi hua hai kya karo
Thank you so much
oh well thank you
2bac 👇
amazing video, but shouldn't the horizontal and amacrine cells be in opposite places in your illsutration at 5.10?
All these little chambers on our faces storing fluid are scary. Moments of extreme cold/fever just make you want to saw open your own face and drain some of this stuff out
Thank you, perfect refresh of infos
M getting solution ❤❤❤❤reply
I m from this but nothing is happening. What is the solution reply help me
My husband who turns 35 this year was just diagnosed with this.😞
For the last month i have had floaters and light flashes ,the floaters have seem to gone away but iam still haveing light flashes in the corner of my right eye ,i went to my optomologist and she said this would go away but iam still haveing the light flashes and its been a month i go back to see her tomorrow now what ?
Give this channel a award just for this video!✨
❤❤😮😮😊😊
🙏✝️🤴👍👏👏👏👏👏👏👏👏👏
CAC Only measures Hard stable plaque and Statins increase and stabilize this Hard plaque.. SOFT plaque is the problem and the CIMT measures this Not the CAC CAC is used only to get business for the corrupt cardio drs One can have Zero CAC and get an attack from the Soft plaque..
So crazy yet we purposely breed dogs to have worse than this and think it's acceptable. WTF
What happens to the mRNA molecule after translation? Is it used to make more copies of the same protein or is it broken down into the nucleotide subunits?
What is treattment.
And yet women are expected to work through this🙄
Thank you very much!
Hamburger
I didn't understand anything
رحمه الله والديج خوش تشرحين وعلي 👌
Is autism get well when kids grow?
Awesome ❤❤❤
Finally 😮😮🎉🎉 thank you
Its all about food.... take autism as diabetes... eat keto diet and you will start feeling the results 💪
If you want to be healed go get acupuncture to calm your mind.Then learn how to start boiling your foods.Eat soups with low fod-map vegetables with chicken or fish.If you eat beef make sure it’s not fried and slow cooked make sure the meat is tender.Drink hot water after meals.Dont eat fruit by itself.No milk.Use a high quantity black seed oil if you accidentally over eat or eat something you know your not supposed too.Now go and thank God he allowed you to live!
Isnt the estrogen normally lower than the LH peak
Amazing thank u
Thank you ❤❤🎉
ebali my eti organy i glandy, kakogo hera voobshe eto v nashei systeme
my vrode ne v medicinskom universitete, a v shkole fizru izhuchaem, chto eto za zalupa
Amazing video really helpful while preparing for my exams
My whole day=5 minutes😢 yyyy
Good workkk
Thank you ma'am ❤
Bro u literary saved 58 lecture slides and a 2h lecture 🤛🙏
I had a lung infection turn sepsis. I didnt go to emergency room untill 6 weeks later. I had been going to Med Now clinic. Then at home i had an attack. Felt like heart attack. Dropped me to my knees. A week later went to emergency room and was trandported 2hrs away to a big city hospital that had specialist to treat me perform surgey on my lungs. I knew i was in bad shap when the nurses started praying for me. Praise God!! It over a yr later now, i was on every antibiotic for 12 weeks, i still have diarria, weekness in my muscles, leg cramps, irritability.
Did anyone else watch this while drunk?
Dünyanın farklı ülkelerinden tıp öğrencileri buraya toplanıp aynı videoyu izleyip aynı şeyi öğrenmeye çalışıyoruz. Garip hissettiriyor. Garip ama güzel. Herkese başarılar
My younger brother who is 32 years old and live at home 🏠 with me and my elderly parents has cerebral palsy which affects one side of his body.