两套神经系统 肠(内在)神经系统 Enteric nervous system intrinsic ·自主(外来)神经系统 Autonomic nervous system(extrinsic
两套神经系统 • 肠（内在）神经系统 Enteric nervous system (intrinsic) • 自主（外来）神经系统 Autonomic nervous system (extrinsic)
Autonomic nervous control Enteric nervous control Endocrine control Paracrine control Gut cell Luminal contents control
胃肠激素 Gastrointestinal hormones 消化道内所含的内分泌细胞数远大于体内 所有内分泌腺所含的细胞总数 消化道是目前所知的体内最大的内分泌器 Gastrointestinal hormones Gut hormones
胃肠激素 Gastrointestinal hormones • 消化道内所含的内分泌细胞数远大于体内 所有内分泌腺所含的细胞总数 • 消化道是目前所知的体内最大的内分泌器 官 • Gastrointestinal hormones，Gut hormones
Copyright o The McGraw-Hill Companies, Inc. Per mission required for reproduction or display TABLE 15-4 Properties of Gastrointestinal Hormones GASTRIN SECRETIN GIP Chemical class Peptid Peptid Peptide Site of production Antrum of stomach Small intestine Small intestine Small intestine Stimuli for Amino acids, peptides Amino acids, fatty Acid in small intestine Glucose, fat in small ormone release in stomach: acids in small parasympathetic intestine nerves Factors inhibiting Acid in stomach hormone release somatostatin a Stomach Acid secretion Stimulates Inhibits Inhibits Motile Stimulates Inhibits Inhibits Bicarbonate Potentiates secretin's Stimulates excretion actions Potentiates CCK's sulin secretion Stimulates Growth of exocrine Stimulates Stimulates Stimulates Liver(bile ducts) Bicarbonate Potentiates secretin Stimulates secretion action Gallbladder Sphincter of Oddi Small intestine Large intestine Stimulates mass movement
口腔内消化 Copyright @ The McGraw-Hill Companies, Inc. Permission requred for reproduction or display TABLE 15-1 Major Functions of Saliva 1. Moisten and lubricate food 2. Digestion of polysaccharides by amylase 3. Dissolve food 4. Antibacterial actions
口腔内消化