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IB Biology HL C3.1.9 Pain Reflex Arcs Questions

Explore impulse direction through receptor, sensory, relay and motor neurons and evaluate spinal-cord coordination of pain withdrawal in IB Biology HL C3.1.9.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Trace impulse direction through receptor, sensory, relay and motor neurons in a pain-reflex arc.
  • Evaluate how the spinal cord coordinates an involuntary withdrawal response using reflex-arc evidence.

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Study C3.1.9—Pain reflex arcs conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL C3.1.9 Pain Reflex Arcs Questions question 1

[Maximum number: 3]

List the sequence of the components of a reflex arc for a pain withdrawal reflex.

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