NERVOUS SYSTEM SPECIAL SENSE
PERIPHERAL NERVE
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Detailed explanation-1: -Efferent Pathways of the Autonomic Nervous System The efferent pathways of the ANS consist of 2 neurons that transmit impulses from the CNS to the effector tissue. The preganglionic neuron originates in the CNS with its cell body in the lateral horn of the gray matter of the spinal cord or in the brainstem.
Detailed explanation-2: -The autonomic nervous system (ANS) is classically divided into two subsystems: the parasympathetic nervous system (PSNS) and sympathetic nervous system (SNS). The enteric nervous system is sometimes considered part of the autonomic nervous system, and sometimes considered an independent system.
Detailed explanation-3: -The advantage of two neurons is conservation of space in the CNS, by shifting neurons into the spacious periphery. The small number of CNS neurons utilize divergent circuits to drive the numerous peripheral neurons.