Myelination and conduction speed
What Myelination and conduction speed means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Myelination and conduction speed
Check what you remember
Read the wording for your board, then hide it and explain Myelination and conduction speed in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
The myelin sheath insulates the membrane so depolarisation occurs only at nodes of Ranvier, and the impulse jumps from node to node in saltatory conduction, which is faster than continuous conduction in unmyelinated axons.
Topics that use Myelination and conduction speed
- Topic 8: Grey Matter (Pearson Edexcel A-Level)
Related terms
- Animal experiments
- Animal models in neuroscience research
- Antagonistic muscle action
- Autonomic control of the pupil
- Benefits
- Cell signalling
- Cerebral hemispheres
- Co-ordination
Using Myelination and conduction speed in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology A (Salters-Nuffield) questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge