The study of the electrical properties of biological cells and tissues.
4
votes
0answers
38 views
Why do neurons have a negative resting potential?
Neurons expend the majority of their energy powering ion pumps to maintain the chemical gradients that power their electrical activity. To have a negative resting potential, neurons leak potassium ...
3
votes
1answer
101 views
Why is saltatory conduction faster than continuous conduction?
How does spacing apart sodium and potassium channels allow the action potential to travel faster down the axon? This is the reason always cited for saltatory conduction and myelination, but my mental ...
3
votes
2answers
74 views
Connect the inner and outer space of cell with a wire, will there be electricity?
There is a potential difference, but ions can not go through wires, right? Though there is a electric field, but there is no electron source, I am thinking the answer is no, or will there be some ...
2
votes
1answer
230 views
Why does high-voltage mostly shock a person, and even small current kill?
This may be the wrong forum to ask.
For instance several people are known to have survived a direct lightning strike; albeit the number of fatalities are probably far larger. Anyway, I found myself ...
3
votes
0answers
32 views
Patch-Clamping Neurons Resources
Are there any lectures available on Patch-Clamping?
Were can I find a mathematical model of Patch-Clamp? (that can be easily implemented in matlab).
I have found some step-by-step protocols on ...
2
votes
1answer
56 views
How stable is in vivo whole cell patch clamping?
For a head fixed animal, how stable is the current state-of-the-art whole cell recording from a cortical neuron? The animal's breathing, and heart beat must move the neuron relative to the recording ...
1
vote
3answers
118 views
Do Viruses produce a biomagnetic field?
From wikipedia:
Biomagnetism is the phenomenon of magnetic fields produced by living organisms.
The present scientific definition took form in the 1970s, when an increasing number of researchers ...
4
votes
1answer
78 views
Why isn't there any repulsive force between Na+ and K+ disrupting thier roles in transmembrane voltage/ action potentials
Pretty self explanatory question. I have a basic grasp on the "How" and "Why" of Reversal/Action Potential in and between neurons, but this question lingers.
13
votes
4answers
371 views
Why did life not evolve to use radio?
We use electromagnetic communication everywhere these days. Cell phones, wifi, old-school radio transmissions, television, deep space communication, etc.
I'm curious about some of the possible ...
9
votes
1answer
96 views
Is there a biophysical causation from local field potential (LFP) to spikes?
Many experiments showed that neurons tend to fire at some phase (usually trough) of local field potential (LFP) oscillations, such as theta or gamma rhythm. LFP is supposedly generated by a population ...
7
votes
2answers
159 views
Is “exhaustion” of the Hodgkin-Huxley membrane at constant stimulation a real phenomenon?
I was playing around with a simulation of the Hodgkin-Huxley model using their original parameters for the squid giant axon.
By applying a constant stimulation current to the model in resting state, ...
