Neurons

Question 1

What are the 3 types of neurons?

Answer 1

Sensory, Relay, Motor

Question 2

Where are sensory Neurons found?

Answer 2

in Receptor cells such as the eyes or the skin

Question 3

Where are relay neurons found

Answer 3

Imbetween sensory and Motor neurons, in the brain or spinal chord

Question 4

Where are motor neurones found?

Answer 4

In CNS connecting to muscles to move them

Question 5

What are the parts of the Sensory Neuron?

Answer 5

Receptor cell
Myelin sheath
Axon
Cell body

Question 6

What are the parts of the Relay neuron?

Answer 6

Dendrite
cell body
axon
Pre-synaptic terminal

Question 7

What are the parts of the Motor Neuron

Answer 7

Dendrite
Axon
Myelin sheath
Neuro fibril node

Question 8

AO1 for synaptic transmission (full)?

Answer 8

• Action potential passes down the axon as an electrical impulse in the pre-synaptic neuron
• Action potential stimulates the synaptic vesicles which hold the neurotransmitters and release them
• Neurotransmitters then carry the signal across the synaptic gap, binding to the receptor sites of the post-synaptic cell
• They then produce an excitatory or inhibitive effect on the post-synaptic cell