8 - REVISITING NEURONES (FUNCTION AND STRUCTURE)

Question 1

How do the motor neurones work and what is their structure (mentioning dendrites, axons and functionality)?

Answer 1

• Many short dendrites carry nerve impulses from the CNS to the cell body
• One long axon carries nerve impulses from the cell body to effector cells

Question 2

Check page 178

Answer 2

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Question 3

How do the sensory neurones work and what is their structure (mentioning dendrites, axons and functionality)?

Answer 3

• one long dendron carries nerve impulses from receptor cells to the cell body, which is located in the middle of the neurone
• one short axon carries nerve impulses from the cell body to the CNS

Question 4

How do the relay neurones work and what is their structure (mentioning dendrites, axons and functionality)?

Answer 4

• many short dendrites carry nerve impulses from the sensory neurones to the cell body
• an axon carries nerve impulses from the cell body to motor neurones