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IB Biology HL 3.1.7 Output through motor neurons Question Bank

Practise IB Biology HL 3.1.7 by relating motor-neuron direction to CNS control of effectors and nerve stimulation of skeletal muscle.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Relate motor-neuron direction to CNS control of effectors and nerve stimulation of skeletal muscle contraction.

C3.1.7—Output through motor neurons question 1

[Maximum number: 1]

What is the main role of nerves in human movement?

A

To cause muscles to stretch

B

To move joints

C

To transport pain signals that indicate muscle injuries

D

To stimulate muscle contraction

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