passwella.
Menu

WAEC Biology 1992 Question 24

Question 24

Nervous Coordination

Use the diagram of the spinal cord and reflex arc (parts labelled I to V) to answer this question.
What is the function of the part labelled III?

Diagram for this question
  1. A.Conducting nerve impulses to the receptor organ
  2. B.Conducting nerve impulses to the effector organ
  3. C.Translating the impulses into messages
  4. D.Amplifying the impulses received from the organ
  5. E.Transmitting the impulses to the brain
Show the answer and explanation

Answer: E (Transmitting the impulses to the brain)

Explanation

III is the sensory nerve fibre from the receptor; it carries impulses into the spinal cord, from where they are passed on to the brain.