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Sensory neurons (afferent neurons) are unipolar, bipolar, or multipolar shaped cells that conduct action potentials toward or into the central nervous system. They carry somatic nervous system signals from the skin, joints, skeletal muscles, sensory organs (eyes, ears, mouth, and nose). They also carry autonomic nerous system signals from the visceral organs (heart, lungs, vessels, etc).
Sensory nerves. send nerve impulse from the body to CNS to. effector organs. ï§Motor nerves are divided into the somatic nervous. system (SNS) which regulates the voluntary. contraction of the skeletal muscles, and autonomic. nervous system (ANS) which regulates the. involuntary control of smooth, cardiac muscles and. glands.