1.Select the incorrect statement regarding gastrointestinal
secretion and its regulation.

a. Saliva secretion is regulated by the salivary center in the
medulla oblongata and is stimulated by both sympathetic and
parasympathetic nerves.

b. Gastric secretion of acid and enzyme is influenced by both
neural and hormonal reflexes.

c. The secretion of pancreatic juice is control by neural and
hormonal factors.

d.The secretion of bile is controlled by gastrin.