All cranial nerves and spinal nerves are part of what branch of the Nervous system? Efferent (Motor) Division of the Nervous System Peripheral Nervous System (PNS) Central Nervous System (CNS) Afferent (Sensory) Division of the Nervous System Question 3 The autonomic nervous system can be further subdivided into the... Central and peripheral branches Somatic and visceral branches Afferent (sensory) and Efferent (motor) branches Sympathetic and parasympathetic branches.