Question

Which of these constitute a motor unit?

• A. Motor neuron + muscle fibres
• B. Motor neuron + fascia
• C. Motor neuron + muscle
• D. Motor neuron + muscle bundle

Answer 1

Answer:

A. Motor neuron + muscle fibres

• Muscle fibres connected to a motor neuron make up a motor unit.

• The motor neuron carries an impulse from the CNS or the central nervous system which stimulates the muscle to contract.