Because the fibers of the sympathetic division arise from the thoracic and lumbar regions of the spinal cord, they cannot innervate structures of the head or pelvis.

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Quizplus · Accepted Answer

This statement is false. While the fibers of the sympathetic division do arise from the thoracic and lumbar regions of the spinal cord, they can innervate structures of the head and pelvis through their connections with other nerves and ganglia. For example, sympathetic fibers can reach the head through the carotid plexus and the pelvis through the hypogastric plexus.

Because the Fibers of the Sympathetic Division Arise from the Thoracic