78.) Hydrochloric acid (HCl) is secreted by __________cells.
enteroendocrine
chief
mucous
regenerative (stem)
parietal
79.) Several digestive enzymes (proteases) are secreted aszymogens because __________.
gastric cells do not have the necessary enzymes for theirsynthesis
it saves one step in their synthesis
they will act only in the stomach lumen and will not digestintracellular proteins
they start digesting intracellular proteins of the gastric cellsmore quickly
they can start digesting dietary proteins more quickly
80.) A hepatic triad consists of __________.
the hepatic portal vein and two hepatic ducts
a bile ductule, a branch of the hepatic artery, and a branch ofthe hepatic portal vein
the right, left, and common hepatic ducts
a central vein, a hepatic lobule, and a hepatic sinusoid
the common hepatic duct, cystic duct, and bile duct
81.) The __________ synthesizes bile acids by metabolizing__________.
duodenum; neutral fats
ileum; bilirubin
liver; cholesterol
pancreas; bile salts
gallbladder; cholesterol
82.) Wavelike muscular contraction of the gastrointestinal tractis called
segmentation.
peristalsis.
deglutition.
mastication.
