3.6.2.1 Motor neurone structure

Question 1

Dendrite

Answer 1

connects with other neurones and are stimulated by them

transmit impulses to cell body

Question 2

Cell body

Answer 2

contains the nucleus and ribosomes for the production of proteins (neurotransmitters)

Question 3

Node of Ranvier

Answer 3

gaps in the myelin where the impulse can occur

saltatory conduction - faster

Question 4

Motor end plate / axon terminal / axon ending

Answer 4

transmits the impulse to an effector such as a muscle / gland

motor end plate secretes neurotransmitters

Question 5

Axon

Answer 5

transmits impulse away from cell body

Question 6

Myelin sheath

Answer 6

• produced by Schwann cells
• myelin is a phospholipid
• acts as an electrical insulator, not allowing the impulse to occur