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JAMB Biology 1990 Question 34

Question 34

Nervous Coordination

Use the figure (a reflex arc) to answer: In a reflex action, impulse flows from

Diagram for this question
  1. A.1 to 2
  2. B.2 to 1
  3. C.4 to 1
  4. D.4 to 2
Show the answer and explanation

Answer: A (1 to 2)

Explanation

The impulse travels along the sensory neuron, through the ganglion (1), into the spinal cord (2) and then out along the motor neuron.