Mucosa
innermost layer made up of epithelial, connective, and smooth muscle tissue that protects, secretes, and absorbs
Submucosa
loose connective tissue, blood vessels and nerves that nourishes and transports
Muscular layer
smooth muscle that moves contents of the tube
Serosa
outermost layer made up of epithelial and connective tissue that protects
Parasympathetic impulses
increase activities of digestive system
Sympathetic impulses
inhibit certain digestive actions
Pancreatic amylase
splits glycogen into disaccharides
Pancreatic lipase
breaks down triglycerides
Trypsinogen, chymotrypsinogen, and carboxypeptidase
digest proteins
Nucleases
digest nucleic acids
Bicarbonate ions
make pancreatic juice alkaline
Gastrin
causes the release of gastric juice
Somatostatin
inhibits the release of HCl
Cholecystokinin
inhibits the release of gastric juice, causes the release of bile
Secretin
causes the release of pancreatic juice