Ion channels and membrane potential
Вставка
- Опубліковано 7 лют 2025
- Ion channels and membrane potential lecture - This lecture explains about the structure and function of ion channels and membrane potential. It also states the role of ion channels in cell membrane to alter the resting membrane potential. Resting membrane potential is regulated by the sodium and potassium ion channels opening and closing and the maintenance of sodium and potassium by sodium potassium ATPase transporter.
Summary of the lecture-
• The concentrations of sodium and chloride are high outside cells in the extracellular fluid, and the concentrations of potassium and organic anions are high inside cells.
• The permeability of a cell for ions depends on the number and type of ion channels in the cell membrane.
• The electrical and chemical forces for a particular ion combine to become a single force, the electrochemical gradient, which causes the movement of that ion across the cell membrane.
• In simple, non-excitable cells, the membrane potential depends only on potassium.
• Potassium comes to equilibrium when the membrane potential for the cell is -90 millivolts.
• The resting membrane potential in neurons depends on the distribution of sodium as well as potassium across the cell membrane. Resting membrane potentials in neurons are commonly around -70 millivolts.
• The sodium-potassium pump is essential for maintaining the resting membrane potential in neurons.
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Thank you for watching the video lecture on Ion channels and membrane potential.
If only my college professor knew how to explain it like you...! Thank you!
Glad to hear that you're getting benefit from my lectures
I really like your videos very much...Good job...May Allah bless you with health and wealth..AMEEN...I am from Lahore Pakistan.
very good, thankssssss
very nice sir thank uuuu...
Sir, I found this topic a bit tough
Is ur 4 lectures (resting potential, action potential, membrane potential and synaptic transmission) video enough for the topic
Pls tell me
It is better to understand this video if you are doing chalk and talk than with slides
Hmm
U confusing between channel proteins and carrier proteins .channel proteins are passive only but carrier mediated proteins are passive or active
please make a neuroanatomy series. it would be really appreciated!
Can you stop speaking this way?? I respect you so much and I always refer to you before referring to the book despite the fact I'm taking another curricula. You don't sound the same and it's annoying also, I found this video brief and you seem confused about it. I'd rather watch you teaching on the board than using a PPT. Thanks
First comment😎😎😎
From where will I learn p type , f type atp ase
You can learn them from the textbook of Lodish. Everything is given in detail.
Somu sir plz thodi hindi use karo vedio me
No
@@shomusbiologyofficial lmao
Lol