Law of conservation - electric charge, brain death

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SUMMARY

The discussion centers on the application of the law of conservation of electric charge in the context of brain death and neuronal activity. It establishes that charge is conserved in biological processes, with specific examples illustrating the distribution of positive and negative charges in living and dead neurons. Upon brain death, excess negative charge within neurons gradually leaks out, leading to electrical neutrality over time. This phenomenon highlights the intersection of physics and neuroscience, particularly in understanding synaptic activity and cessation during brain death.

PREREQUISITES
  • Understanding of electric charge conservation principles
  • Basic knowledge of neuronal structure and function
  • Familiarity with synaptic transmission processes
  • Awareness of brain death criteria and implications
NEXT STEPS
  • Research the principles of electric charge conservation in biological systems
  • Explore the mechanisms of synaptic transmission in neurons
  • Investigate the physiological changes during brain death
  • Study the relationship between neuroscience and physics, particularly in brain function
USEFUL FOR

This discussion is beneficial for neuroscience students, medical professionals, and researchers interested in the intersection of physics and brain function, particularly in the context of brain death and neuronal activity.

cameronmoore
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Hey there,

So I'm a bit of a newbie on this, and I'm just kind of wondering on this subject...

But could someone give a brief description of how conservation laws apply to electric charge? And more specifically, I'm thinking in terms of how it applies to synapses and such in the brain, especially how it would apply to the cessation of such electrical charges (and even chemical/neurotransmitter synapses) in the event of brain death. Does anyone know of any research even loosely related to these things? I realize it's kind of a combination of physics and neuroscience that I'm getting at, was just curious if there's any observations out there on this kind of process...e.g. quantum brain, even classical mechanics, etc. etc.

Thanks.
 
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Charge is conserved in all known biological processes.

In long dead neurons, there are N positive charges and N negative charges outside the cell, and M positive charges and M negative charges inside the cell.

In living neurons, there are N positive charges and N-x negative charges outside the cell, and M positive charges and M+x negative charges inside the cell at rest.

In neurons in an animal that has just died, there will still be excess negative charge inside the cell. However, this excess charge will slowly leak out, until both the inside and outside are electrically neutral.
 

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