Types of Neurons Flashcards
1
Q
What are the three types of neurons?
A
- Sensory.
- Relay.
- Motor.
2
Q
What is the purpose of sensory neurons?
A
Carries information from the senses from the PNS to the CNS.
3
Q
What is the structure of sensory neruons?
A
- Unipolar, as they only have one protrusion from the cell body.
- Long dendrites.
4
Q
Where are relay neurons found?
A
Within the CNS.
5
Q
What is the purpose of relay neurons?
A
Carries messages from one part of the CNS to another.
6
Q
What do relay neurons connect?
A
- Sensory and motor neurons.
OR - Between other relay neurons.
7
Q
What is the structure of relay neruons?
A
- Multipolar, as they have two protrusions from the cell body.
8
Q
What is the purpose of motor neurons?
A
- Carries messages away from the CNS to effectors.
- Tells effectors when and how to function.
9
Q
What does the strength of muscle contraction depend on?
A
How fast and strong the motor neuron is firing.
10
Q
What is the structure of motor neruons?
A
- Short dendrites.
- Long axon.
