HMS, BM EQ-Bank 929

Describe the structure and function of motor neurons in the peripheral nervous system. (3 marks)

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Sample Answer

Motor neurons have a cell body in the CNS containing the nucleus and organelles.
A long axon extends to muscles, covered with myelin sheath for faster signal transmission.
Multiple dendrites branch from the cell body to receive signals from other neurons.
Motor neurons transmit electrical impulses from CNS to muscles, causing contraction for voluntary movement.

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Sample Answer

Motor neurons have a cell body in the CNS containing the nucleus and organelles.
A long axon extends to muscles, covered with myelin sheath for faster signal transmission.
Multiple dendrites branch from the cell body to receive signals from other neurons.
Motor neurons transmit electrical impulses from CNS to muscles, causing contraction for voluntary movement.