Verana E. Berrong, History of Tarrant County: From Its Beginnings until 1875 (M.A. thesis, Texas Christian University, 1938). Janet L. Schmelzer, Where the West Begins: Fort Worth and Tarrant County (Northridge, California: Windsor, 1985).
Page 4: Parasympathetic and sympathetic nerves innervate the GI tract. â¢ Both parasympathetic and sympathetic divisions of the autonomic nervous. system control digestion by contacting the enteric nervous system in the. wall of the digestive tract. â¢ The parasympathetic division typically stimulates digestion while the. sympathetic division typically inhibits it.
1 CCK travels through the bloodstream and binds to receptor cells in the acini of the pancreas. 2  CCK stimulates these cells to produce and secrete pancreatic juice that has a high concentration of digestive enzymes.