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IB Biology SL C3.1.7 Output Through Motor Neurons Questions

Explore how motor neurons carry CNS commands to skeletal-muscle effectors and how cerebral hemispheres coordinate voluntary contraction in IB Biology SL C3.1.7.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • State that motor neurons carry impulses from the central nervous system to skeletal-muscle effectors.
  • Explain that voluntary muscle contraction is coordinated through the cerebral hemispheres and motor output to the selected effector.

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Study C3.1.7—Output through motor neurons conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology SL C3.1.7 Output Through Motor Neurons Questions question 1

[Maximum number: 1]

Where do motor neurons conduct impulses from and to?

A

From effectors to the central nervous system.

B

From receptors to the central nervous system.

C

From neurons to other neurons.

D

From the central nervous system to effectors.

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