NUTR 205 1nd Edition Lecture 8 Outline of Last Lecture I. Organs and organ systemsII. Digestion vs. absorptionIII. Digestive system secretions: chemical digestionOutline of Current Lecture IV. Digestion in mouthV. PharynxVI. StomachCurrent Lecture- Digestion in moutho Mechanical and chemical digestiono Saliva Secreted from salivary glands after the sight, smell or presence of food Contains lubricants, enzymes and other substanceso Teeth Breakdown food particleso Taste buds Detect food chemicalso Tongue Helps mix food and aids chewingo Bolus formed- Pharynxo Part of digestive and respiratory systemso Epiglottis Blocks food from entering the trachea (windpipe) and lungs- Stomacho Temporary storage of foodo Stomach lining produces gastric juice containing: Water Pepsinogen- Activated in the digestive enzyme pepsin- Digestive enzyme for proteinThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. Hydrochloric acid- Kills microorganism- Unfolds protiens- Activates pepsin- Inhibits amylase (digestive enzyme for carbohydrates)
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