Neurons Flashcards
1
Q
What is the purpose of Neurons
A
- Processes & Transmit messages through electrical & chemical signals
2
Q
What is the Structure of a neuron.
A
- Dendrite
- Axon
- Nucleus
- Terminal buttons
3
Q
What is the role of dendrites?
A
- Carries impulses from neighbouring neurons
4
Q
What is the role of Nucleus?
A
- Contains all the genetic material of the cell
5
Q
What is the role of the Axon and what is its structure?
A
- Carries impulse away from the cell body
- Myelin sheath
- Nodes of Ranvier: Speeds up impulse by forcing it to jump
6
Q
What is the role of the Terminal Buttons?
A
- Communicate with a neighbouring neurone
7
Q
What are the 3 types of neurons?
A
- Motor Neuron
- Relay Neuron
- Sensory Neuron
8
Q
What is the role of the Sensory Neuron?
A
- Carry messages from the PNS to the CNS
9
Q
What is the role of the Relay Neuron?
A
- Pass information on to other relay neurons or motor neurons
10
Q
What is the role of the Motor Neuron?
A
- Carries messages from the CNS to the muscles or glands
