Neuron structure Flashcards
1
Q
Define a neuron
A
A specialised cell which carries neutral information around the body
2
Q
What are neurons made up of?
A
Several thousand axons
Bundled together
3
Q
Define dentrites
A
Carry nerve impulses from neighbouring neurons towards cell body
4
Q
Define soma
A
Contains DNA and genetic information
5
Q
Define myelin sheath
A
Protects Axon
Speeds up transmission of electrical impulse
6
Q
Define node of ranvier
A
Gap in the myelin sheath
Speeds up transmission of impulse by forcing it to ‘jump’ across the gap
7
Q
Define Axon
A
Carries impulses from cell body along length of neuron
8
Q
Define Schwann cell
A
Forms the myelin sheath
9
Q
Define Axon Terminals
A
Terminal buttons at the end, communicate with next neuron across a gap (synapse)
