Digestion

• Bolus: a soft, flexible, and easily swallowed mass made up of food particles after being broken down through mechanical digestion
• Chyme: soupy liquid that results when food is mixed with digestive juices
• Mastication: leads to the formation of BOLUS
• Enzymes will act on STARCH and LIPIDS.
• Salivary amylase: Converts starch to smaller molecules such as MALTOSE, MALTOTRIOSE, and a-DEXTRINS.
• Lingual lipase: converts dietary TRIGLYCERIDES to FATTY ACID and DIGLYCERIDES.
• Deglutition: swallowing
• Peristalsis: a progression of coordinated contractions and relaxations of the circular and longitudinal layers of the muscularis that pushes the bolus onward
• Voluntary Stage: bolus towards oropharynx
• Pharyngeal stage: from pharynx to the esophagus
• Esophageal stage: from esophagus to the stomach.