Peripheral Nervous System ° Two subcategories Sensory or afferent Dorsal root of spinal nerve Dorsal root ganglion Motor Motor or efferent Sensory neuron neuron ·DiⅤ ISIons Spinal Spinal nerve cord Somatic nervous Spir Spinal nerve system cord Sensory recepto Ventral root Skeletal Autonomic nervous (b)of spinal nerve muscle Spinal nerve system(ANS) Spinal cord d Autonomic ganglion >Sympathetic >> Parasympathetic First motor neuron Second motor neuron > Enteric Effector organ(e.g, smooth (c) muscle) Large intestinePeripheral Nervous System • Two subcategories – Sensory or afferent – Motor or efferent • Divisions – Somatic nervous system – Autonomic nervous system (ANS) »Sympathetic »Parasympathetic »Enteric