The sections in this article are:
Salivary Glands
Stomach
Gastric Secretion
Small Intestine
Morphology
Brush Border Membranes
Enzymes
Intestinal Permeability
Protein Synthesis
Intestinal Absorption
Gut‐Associated Immune System
Splanchnic Blood Flow
Gastrointestinal Motility
Esophagus
Stomach
Neuromuscular Functioning
Colon and Rectum
Pancreas
Liver and Biliary Tree
Morphology
Age‐Associated Effects
Consequences of Aging
Bile
Gastrointestinal Hormones
Cellular Proliferation
Esophagus and Stomach
Small Intestine
Colon
Effects of Caloric Restriction