Sensory neurons
Conduct impulse from receptors to CNS.
Consist of nerve fibers that convey impulse to CNS from sensory receptor located throughout body.
Sensory fibers conveying impulse from skin, skeletal muscles and joints are called somatic afferent fibers.
Sensory fibers that transmitting impulses from visceral organs called visceral afferent fibers.
Motor neurons
Conduct impulse from CNS to effectors (muscle and glands).
Transmit message away from CNS.
Stimulate effectors (skin, sense organs, muscles, gland) to perform function or reflex (action).
These impulse activate muscle to contract and glands to secrete.
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