Your body isn’t strung with copper wire. So how does the nervous system send electrical signals? Libby and Ruka discuss this question and attempt to do math. When you’re done listening, remember to write that letter to your Nana Amps. She misses you.

Key Words

action potential, axon terminal, axon, cell membrane, current, electrical potential, excitatory, extracellular, gap junction, graded potential, inhibitory, intracellular, ions, leak channels, megaohms (mΩ), membrane potential, millivolts (mV), myelin, Na+/K+-ATPase, nanoamps (nA), negative charge, Ohm’s law, pacemaker potential, permeability, positive charge, potential difference, potential, propagation, receptor potential, resistance, resting membrane potential, signal transduction, synaptic potential, threshold, transmembrane potential, V=IR, volts

 

Old West Words of the Day

John B.

John Barleycorn

Brother Jonathan

 

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References

• Textbooks
• • Principles of Neural Science, Kandel, Schwartz, and Jessell, 4th Edition
  • Vander’s Human Physiology, 13th Edition

 

Music

Bushwick Tarantella by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)

Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1300002

Artist: http://incompetech.com/

Modified from original with volume fading and cuts

 

Disclaimer

This podcast is for entertainment and education only. Neither of the hosts is a medical doctor, and nothing they say is medical advice. Please consult with your physician before making decisions about your health.