Resting Membrane Potential (RMP) | Nerve Physiology

Resting Membrane Potential (RMP) | Action Potential | Polarized State, Depolarization, Repolarization, Hyperpolarization | Sodium, Potassium, Chloride, Calcium | Nerve Physiology.
In previous videos, we have discussed:
-The Strength-Duration Curve.
-Rheobase, Double Rheobase, Chronaxie, Minimal Time and Utilization Time.
-What is nerve excitability?
-Structure of Nerves.
- Autonomic Nervous System (ANS) Quick Review,
- Nicotinic vs Muscarinic Receptors, Acetylcholine vs Nor-Epinephrine, Cholinergic vs Adrenergic Fibers | Neurology.
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@Leo Amari You are welcome =)

[@sanchomemark8373]

K+ efflux is said to be much greater than Na+ influx (20-100:1). What stops the concentration gradients from degrading? It’s the Na+K+ ATPase right? But the pump moves Na+ and K+ in a ratio of 3:2. So this doesn’t seem to add up. Surely more Na+ must be entering the cell compared to K+ leaving (at a ratio of 3:2)

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[@Thecutecherry_tutu]

My friend (who understands what the professor said at the lecture) tried to explain the resting potential and it took two hours and I didn’t understand anything, but one video on medicosis made me see what was hidden

[@MedicosisPerfectionalis]

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Huge respect to you sir 🙏🙏🙏🙏

[@MedicosisPerfectionalis]

Thank you so much 😊

[@vibzzlab]

Thank you so much dear medicosis. I was really feeling desperate without understanding the effects of Potassium on RMP. Reading textbook and hearing lectures didnt help me, but You made it understand in minutes. 🥰🥰. Now I am binge watching your videos

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Wow

[@ThatsWhy-]

The answer : "C" to pump na+_ca++

[@ThatsWhy-]

What is the difference between electro-gradient AND osmosis gradient? What is the relation between the two?? Help me to grasp the meanings of the two, please

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[@SapphireZeev36]

20:32 if greater the calcium=less excitability, how do I better understand this with regards to verapamil (which among other uses) decreasing tachyarrhythmia

[@MedicosisPerfectionalis]

There's a difference between serum calcium concentration and blocking a calcium channel in a target organ.

[@SapphireZeev36]

@@MedicosisPerfectionalis correct. I assumed as much I was hoping someone could elucidate on that because it was still talking about the heart.

[@zakirzak1494]

Answer is C ... helix point for higher Na channels

[@MedicosisPerfectionalis]

Are you sure?

[@zakirzak1494]

@@MedicosisPerfectionalis guessed... unsure

[@muhammadaliaslam4023]

Sir! As u said that In case of Non excitable cells eg RBCs that have less negative RMP(Less K+ Efflux) but When We say in case of Hyperkalemia there is less K+ Efflux or Less negative RMP they become more Excitable, Isn't it Contrary? BTW thanks for Glorious Video. Kindly Sir explain it

[@anasaitkhouya7898]

Exactly, i think for hyperkalemia there is more K+ in the ECF thus more negative Membrane potential so less excitability. Makes also sense for hypokalemia.

[@susmitasunar5671]

C- axon hillock

[@charisuwaa6204]

Old topic. Now you decided do it

[@MedicosisPerfectionalis]

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[@MedicosisPerfectionalis]

Thank you so much for watching! Good luck 🍀