Ventricular Action Potential | Cardiac Action Potential | Part 1 | Phases | Cardiac Physiology
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- Опубликовано: 4 авг 2024
- ✨This video is on the phases of the ventricular action potential. Part II will be on the Sinoatrial Node Potential. I hope it helps! ☀️
🌟What's in this video?
0:00 - Intro
0:09 - Action Potentials Recap
3:06 - Phases of the Ventricular Action Potential
4:12 - Ionic Basis of the phases
6:21 - Refractory Period
7:16 - Action potential and Contraction
✨ Other videos you may need:
🔅Sinoatrial Node Potential : • Sinoatrial Node Potent...
🔅Action Potential : • Action Potential
🔅Resting Membrane Potential : • Resting Membrane Poten...
🔅Structure of Cardiac Muscle : • Structure of Cardiac M...
🔅Cardiac Muscle Contraction: • Cardiac Muscle Contrac...
🔅Nerve-Muscle Physiology :
• Nerve & Muscle Physiology
💫 For more videos like this, subscribe to my channel!
Byte Size Med: / @bytesizemed
📚Factual References & for Further Reading:
- Guyton and Hall Textbook of Medical Physiology
- Ganong’s Review of Medical Physiology
- Boron and Boulpaep Medical Physiology
- Costanzo’s Textbook of Physiology
- Openstax Anatomy and Physiology
openstax.org/details/books/an...
- Openstax Biology
openstax.org/details/books/bi...
(The last two are links to open-source references. They are NOT affiliate links)
🌤 Note:
These are just a collection of my notes. So use them the way you would use borrowed notes from a friend. 📝
The images in this video are hand-drawn for illustration and explanation only.✍️ Hence, they may not be anatomically accurate. I am just one person making these videos. If there are any errors, that is unintentional. I try super hard to avoid them. Please let me know if you find any, so it gets clarified for other viewers. Science constantly evolves and changes. New discoveries are made everyday. So some of the information in these videos may become outdated. If you notice that, please let me know so I can update them.
⚡️Disclaimer:
These videos are NOT a substitute for a medical textbook. Textbooks are written by experts (which I do not claim to be), edited, proofread and referenced. Please use them.
The information has been sourced from multiple references as mentioned above. I draw all the pictures myself. But if I have inadvertently infringed on any copyright, that is completely unintentional. I only make these videos to impart education. If I have accidentally violated copyright in any way, do let me know so I can make the necessary changes or give credit to anyone who is owed the same.
These videos are NOT intended for patient education. They are NOT a substitute for diagnosis and treatment by a licensed medical professional. Always seek the advice of a qualified health care provider for any questions you may have regarding any medical condition, so that they can address your individual needs.
🔅They are ONLY meant to help students of medicine and health sciences with studying, and should be used for just that purpose and absolutely nothing else.
Byte Size Med. All Rights Reserved.
literally have been avoiding learning action potentials for years through all my science classes and now i finally get it, such a great video
👏Great explanation, well simplified!
I love how calm she is in explaining this, thank you Ma'am 🙏
Studying for my physiology exam... you're a lifesaver!
You did a great job explaining, the video is short and brief. Very helpful thank you!
your videos, explanations, and illustrations are SO SO helpful
Excited for part 2!
Really good explanation, with easy and understandable animations. Thank you!
Part 2 please and cardiac cycle please and also vascular physiology 😭😭your videos are amazing why am I just coming across them few months to my exams
The best explain ever! Thank you
Neat and succinct. Keep up the good work.
This is great! Thank you!
the best explain ever👌
thanks a lot 🙏
super helpful and well explained, thank alot
Thank you for this video!
Just a great vid. Thank you.
Great video explaining this! It even helped me to connect concepts learned in my other classes!
Absolutely amazing 👏 😍 ❤️
Such a helpful video ❤
Best explanation I've seen so far! This really helped me to separate contractile from conducting cells. I really appreciate it! 🙂
I’m so glad you found it helpful!😊
this is so helpful omg
very helpful, thank you!
this video series came just in time
So happy to hear that!😊
Amazing work . Atlast I came to know that this channel can save me from havoc😂
Amazing video thank you so much❤
thank you so much
thank you!!
Thank you so much i've been watching so mamy video this mede me Memorize it thank you so much
thank you sm 💖
Thanks❤
The best
your calm voice makes me not stressed out learning this, very helpful thank you!!!
I’m happy to hear that!😊
I subscribed and I liked. Thank you.
Thank you for the support!😊
Excellent video! Made the textbook make much more sense. I'm still not understanding when potassium returns to the cell. Is this after the hyperpolarization with the Na⁺/K⁺-ATPase pump?
Yes, Na⁺/K⁺ ATPase pump returns the cell to its resting membrane potential, and the cycle repeats with another action potential.
What program do you use to write and put the Diagrams
Your channel is God's gift ❤
Thank you!✨
as a med student this is saving me in revising for my finals!!!
Glad I could help!✨
In 5:48. I studied that at plateau some potassium start to gonna close? (I think not all) what do u think of this.
best
Great video! How do you animate your draws into the video? What software do you use?
You ate
What app do you use to draw/comment on your drawings? I ask so that I can take notes for my school
Have you found the answer please?
Looks like Good Notes!
I recommend you ‘good notes’ it’s the best
Why is the resting membrane potential negative 70 mv? The cell is filled with potassium which is a cation. Also how/when does potassium renter the cardiac cell?
It’s a comparison from inside the cell to outside. There are more cations outside the cell compared to the potassium inside the cell so -70 is just what the comparison difference is from in to out.
Maam can u also add coronal ,cerebral and splanchnic circulation
I have made a video on cardiac blood supply. You can check out my cardiovascular system playlist for that. I’ll add the other two to my list of upcoming videos. Thank you for the suggestion!✨
Why should the depolarization called phase 0 not phase 1..?
Life saver🥲🤭
Thank you so much for this!! It has helped me so much 🫀
Glad to hear that!✨