The central nervous system (CNS) cells, where the impulses for the sympathetic nervous system (SNS) originate, are located where?
A) Cranium and sacral area of the spinal cord
B) Hypothalamus and the medulla
C) Nerve membranes
D) Thoracic and lumbar sections of the spinal cord
D
Feedback:
The SNS is also called the thoracolumbar system because the CNS cells, where the impulses for the SNS originate, are located in the thoracic and lumbar sections of the spinal cord. The parasympathetic nervous system (PNS) is called the craniosacral system because the CNS neurons, where the impulses for the PNS originate, are found in the cranium and the sacral area of the spinal cord. Alpha2-receptors are located on nerve membranes and the hypothalamus and medulla are located where the main nerve centers for the autonomic nervous system (ANS) are located.
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