Types of neurons

Question 1

order of 3 neurons interacting

Answer 1

sensory->relay->motor

Question 2

3 types of neurons

Answer 2

1. sensory
2. motor
3. relay

Question 3

process of 3 neurons working together

Answer 3

1. stimulus detected by sense organ in PNS conveys message to sensory
2. message reaches relay in CNS + sends to brain
3. transfers message to motor then to effector eg muscle/gland
4. response

Question 4

function of sensory neuron

Answer 4

carries messages about environment from sensory receptors in PNS to CNS

Question 5

where is the sensory neuron

Answer 5

PNS and sense organs (eyes,tongue,skin)

Question 6

description of sensory neuron

Answer 6

• small cell body
• myelinated axon
• long dendrites
• short axon

Question 7

function of relay neuron

Answer 7

• allows sensory and motor neurons to communicate.
• connects other relay neurons

Question 8

where is the relay neuron

Answer 8

brain and spinal cord (CNS)

Question 9

description of relay neuron

Answer 9

• small cell body
• non myelinated axon
• short dendrite
• short axon

Question 10

function of motor neuron

Answer 10

• carries electrical impulses away from brain + spinal cord to effectors in body eg muscles/glands
• leads to muscle movement in CNS/PNS

Question 11

description of motor neuron

Answer 11

• large cell body
• myelinated axon
• short dendrites
• long axon