Action Potential | Part 1 | Ionic Basics | Nerve Muscle Physiology

✨This video is the first of a three-part series on the action potential.
In part 1, I talk about some of the basics of potentials and ion movements with the voltage-gated sodium and potassium channels that are needed for understanding the action potential. I hope it helps! ☀️
🌟What's in this video?
0:00 - Intro
0:26 - Resting Membrane Potential Recap
2:44 - Voltage-gated sodium & potassium channels
5:43 - Phases of the Action Potential
✨ Other videos you may need:
🔅Action Potential Part 2: • Action Potential | Par...
🔅Action Potential Part 3: • Conduction of nerve im...
🔅Structure of Neurons: • Structure of Neurons |...
🔅Resting Membrane Potential: • Resting Membrane Poten...
💫 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
- Costanzo’s Textbook of Physiology
- Boron and Boulpaep Medical 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 So some of the information in these videos may become outdated.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.

[@didj5674]

We need more videos that explain the nervous system especially the autonomic part , i can assure to you that the way you illustrate in these videos is better and more simplified , also they’re not time draining the videos i mean , keep up doing these masterpieces ☺️

[@raqueljarvis6512]

Thank you for your great explanation. helped A LOT. PLEASE make more.

[@fantastic7710]

Thank you very much ,, I hope u continue in other subjects such as pathology and so on., because I am weak in it.

[@essaamer7702]

You are like angel from the heaven … thank youuuuuuuu ❤❤❤❤❤❤

[@bio366geethasankar7]

🙏🙏🙏

[@Dr.Goutham1]

Grand master ❤

[@anjithas5934]

Very useful❤️

[@Kimmy8it]

Thank you for your content you’re notes are amazing

[@bytesizemed]

I’m glad you like them!✨

[@oribhabormercy1472]

Thank you so very much. Very helpful,God bless you

[@bio366geethasankar7]

🙏🙏🙏

[@Pooplicker563]

Wow you’re awesome

[@chomanlal46]

Nicely explained , thank you 💕

[@bio366geethasankar7]

🙏🙏🙏

[@anazahmed509]

You teach really well!

[@bytesizemed]

Thank you!😊

[@medicalcollegeamritsar]

👍✅

[@cometaire1]

great stuff! keep up the good work :)

[@bytesizemed]

Thank you!:)

[@gia-baoha5446]

Thanks for the video! I have some questions and hope you can clear things up: Why can't anions leave the membrane? What makes the membrane permeable to some ions but not others?

[@rayhanislam8005]

a lot of the negative charged molecules(anions) are proteins and they can't leave because they have cell functions, also proteins are large molecules.

[@muqtarjamaegal6071]

Because they are non permeable molecules there is no door to leave

[@daniamirza2826]

anions attached to k+ are either proteins or phosphatases which are larger molecules and need transporters for them to leave. permeability of a substance or ion through plasma memb. depends upon the no of channels/transporters it has for them

[@bio366geethasankar7]

🙏💕🙏🙏