Digestive%20System%20Anatomy%20and%20Physiology

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Digestive System Anatomy and Physiology
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Mouth

• Hard Palate
• Anterior roof
• Soft Palate
• Posterior Roof
• Uvula
• Projection of soft palate
• Lingiuinal Frenulum
• Attaches tongue to mouth floor

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Pharynx

• Passageway for food and air

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Esophagus

• Tube carries food to stomach
• Peristalsis
• Muscle contractions that move the food

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Stomach

• Cardioesophageal Sphincter
• Opening at top of stomach
• Gastric Juice
• Stomach acid
• Chyme
• Substance left after stomach digestion
• Pyloric Sphincter
• Opening at bottom of stomach leads to intestines

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Small Intestine

• Nearly all food absorption occurs here
• Three Sections
• Duodenum
• Jejunum
• Ileum

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Large Intestine

• Absorbs water
• Get rid of waste
• Appendix
• Inflamed appendixappendicitis

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Salivary Glands

• Parotid glands- near ears in mouth
• Submandibular and sublingual glands
• Produce saliva under tongue
• Saliva
• Moistens food
• Helps start startch digestion

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Teeth

• Deciduous teeth
• Baby teeth
• Incisors- cut food
• Canines- tear and pierce food
• Molars- grinding

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Pancreas

• Produces enzymes that break food down
• Empties into small intestine
• Neutralizes gastric acid
• Produces insulin and glucagon

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Liver and Gall Bladder

• Produces bile
• Bile enters small intestine
• Helps breakdown lipids
• Gall bladder stores bile