Most of the gastrointestinal tract is innervated by the sympathetic and parasympathetic branches of the nervous system. Which parts are innervated by the somatic nervous system?
A) esophagus and stomach
B) pharynx and anal canal
C) pyloric, ileocecal, and internal anal sphincters
D) small and large intestines

Question

Quizplus · Accepted Answer

The pharynx and anal canal are innervated by the somatic nervous system, specifically the cranial nerves (pharynx) and the pudendal nerve (anal canal). The esophagus, stomach, small and large intestines are innervated by the sympathetic and parasympathetic branches of the nervous system. The pyloric, ileocecal, and internal anal sphincters are also innervated by the autonomic nervous system.

Most of the Gastrointestinal Tract Is Innervated by the Sympathetic