Functional Classification of Neurons - Diagrammatic View
Sensory and Motor Systems (Peripheral Nervous System)
- The peripheral nervous system (PNS) is made up of nerves, and inside the nerves are neurons (nerve cells) that conduct action potentials between the CNS and peripheral organs.
- Based on the direction in which they conduct action potentials, neurons split the PNS into sensory (afferent) and (efferent) divisions.
- Sensory division neurons conduct action potentials toward the CNS.
- Motor division neurons conduct action potentials away from the CNS.
- Both divisions have branches that allow the CNS to voluntarily (consciously) or involuntarily (subconsciously) monitor and control the certain tissues and organs.