Carry an impulse from the CNS to the effectors.

Carry an impulse from the CNS to the effectors.

• A. Nerves
• B. Receptors
• C. Sensory neuron
• D. Motor neuron

Answer: (D)

Signals that produce a response travel from the brain or spinal cord to the organs that act through a motor neuron. These neurons carry impulses away from the CNS to muscles or glands, triggering contraction or secretion. Receptors detect stimuli and send signals toward the CNS via sensory neurons, so they’re part of the input side rather than the output. Nerves are bundles that can carry both sensory and motor fibers, but the element that specifically moves the impulse from the CNS to the effector is the motor neuron.

Signals that produce a response travel from the brain or spinal cord to the organs that act through a motor neuron. These neurons carry impulses away from the CNS to muscles or glands, triggering contraction or secretion. Receptors detect stimuli and send signals toward the CNS via sensory neurons, so they’re part of the input side rather than the output. Nerves are bundles that can carry both sensory and motor fibers, but the element that specifically moves the impulse from the CNS to the effector is the motor neuron.