Divisions of the Nervous System The nervous system Peripheral nervous system(PNS) Central nervous system(CNS) Afferent (A) Efferent(E) Brain nervous system nervous system Spinal cord Ce信tr启l Nervous System Brain Spinal cord Somatic Autonomic nervous system nervous system Enteric Parasympathetic Sympathetic Peripheral nervous system nervous system nervous system Nervous System Periphoral norves 5Divisions of the Nervous System The nervous system Peripheral nervous system (PNS) Central nervous system (CNS) Afferent (A) nervous system Efferent (E) nervous system Somatic nervous system Autonomic nervous system Parasympathetic nervous system Sympathetic nervous system Brain Spinal cord Enteric nervous system 5