Summary
Summary The Electrical Nature of Nerves
- Course
- Institution
A summary on the electrical nature of nerves
[Show more]
Seller
Follow
thekrakenmid
Reviews received
Content preview
The Electrical Nature of NervesNeurons use electrical signals, known as nerve impulses, to communicate with other
neurons, muscles, and glands.
Resting Membrane Potential
● In a resting neuron, the inside of the cell is negatively charged relative to the
outside.
● This charge separation across the membrane is called the resting membrane
potential and is around -70mV.
● The resting membrane potential provides the energy for generating a nerve
impulse.
Three main factors influence the membrane potential:
1. Large, negatively charged proteins inside the cell.
2. Channels in the membrane that allow potassium (K+) to diffuse out more
easily than sodium (Na+) can move in, making the inside of the cell more
negative.
3. The sodium-potassium pump, which uses ATP to transport three sodium
ions (Na+) out of the cell and two potassium ions (K+) into the cell, helping
maintain the resting membrane potential.
Action Potential
● Action potential is the electrical signal generated by neurons.
● Voltage-gated ion channels along the axon of neurons open and close in
response to local voltage changes.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller thekrakenmid. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82191 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now