Multiple choice

Which structure carries the message from sensory organs?

  1. Sensory neuron

  2. Relay neuron

  3. Motor neuron

  4. Nerve impulse

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sensory neurons (afferent neurons) transmit signals FROM sensory organs TO the central nervous system. Motor neurons carry signals away from CNS to effectors. Relay neurons connect within CNS. Nerve impulse is the signal itself, not the structure carrying it.