3
votes
Accepted
Why do V_Na and V_K stay unchanged in Hodgkin-Huxley model?
As you've figured out, the reversal potentials don't change because they're assuming the concentrations don't change. Even relative to $\mathrm{[Na^+]_o}$ and $\mathrm{[K^+]_i}$ the number of ions ...
- 42.5k
2
votes
Accepted
what does concentric antagonistic areas in the retina mean?
Antagonistic means opposite/opposing.
The receptive fields have ON and OFF areas that oppose each other; that is, light on the surrounding area has opposite effect of light on the center.
It gets ...
- 42.5k
2
votes
Are parasympathetic nerves different from motor and sensory nerves?
There are many ways to divide and sort peripheral and spinal cord nerves and axons.
One division is into "autonomic" (further divided into sympathetic and parasympathetic) and "somatic&...
- 42.5k
2
votes
Do hair cells in the ear also vibrate at frequencies outside our hearing spectrum?
Hyperphysics has a good overview of human hearing from a physics perspective you may want to check out. It should clear up some misunderstanding you have.
First, the idea that hair cells in the ...
- 820
1
vote
Accepted
How does retinal ganglion cell receptive field affect the LGN neuron activity?
The picture is showing you how receptive fields are combined at different levels of the visual processing hierarchy. The activity of multiple cells is combined to influence the activity of the ...
- 42.5k
1
vote
Inheritance of child behavior based on daily life experiences of the parent
Children inherit DNA from their parents, which in turn was inherited by their parents from their grandparents, and so on. Only modifications to the DNA in the germ-line cells (those producing eggs and ...
- 42.5k
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