Summary
OCR Biology A-Level Neurones Summary
- Course
- Institution
Handwritten Notes detailing all the necessary A* content for Neurones in OCR A-Level Biology.
[Show more]
Seller
Follow
faithcortis
Content preview
structure of Neurones :·
Cellbody
:
Contains the nucleus and cytoplasm has ,
lots of Mitochondria and RER to
produce neurotransmitters
·
Dendrons :
short extensions that divide into dendrites s transmits electrical impulses
Axons Nerve:
fibers that transmit impulses away from the cen body
Types of neurone :
Sensory Neurone Transmit impulses from cell to
relay/motor brain
sensory neurone or the
a a
:
myheath Node of Ranvier
Motor Neurone Transmit from
neurones
relay/sensory to effector
:
a neurone an
mychneath Node of
Ranvier
Many
Relay Neurone :
Transmit impulses between neurones
myclin sheath
Many layers of plasma membrane
acting as an
insulating layer allowing
:
electrical impulses at a much faster rate
Node of Ranvier Gaps in the myelin
:
sheath that allows the electrical imprises to jump
↳ much faster transmission
Multiple Sclerosis Autoimmune disease that causes the
:
bream down of the
my clin sheath
Pacinian Corpsucle Sensory receptors in the swin :
↳ Pressure on the corpsucle distorts the membrane , widening the sodium ion channels
↳ Depolarisation causes generator potential
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 faithcortis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $4.04. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now