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Digestive System
Digestive System and Nutrition
| Question | Answer |
|---|---|
| Mouth | Ingesting food; mechanical and chemical digestion |
| Teeth | Chewing; mechanical digestion |
| Incisor | Used to cut food |
| Canines (cuspids) | Used to tear or shred food |
| Premolars (bicuspids) | Used for crushing and grinding food |
| Molars | Used for crushing and grinding food |
| Dental Succession: Stage 1 | Deciduous teeth |
| Dental Succession: Stage 2 | Permanent teeth |
| Dental Succession: Stage 3 | Wisdom teeth |
| Salivary Glands: Parotid | Produce watery saliva containing salivary amylase |
| Salivary Glands: Sublingual | Produce mucous saliva |
| Salivary Glands: Sub-mandibular | Produce mucous saliva containing salivary amylase |
| Saliva | Keeps mouth moist; wets/moistens food |
| Salivary Amylase | Chemical digestion of carbohydrates in the mouth |
| Pharynx | Swallowing; passageway for food |
| Esophagus | Carries food to stomach |
| Stomach | Stores food; chemical and mechanical digestion; produces HCl |
| Small Intestine | Digestion (chemical); absorption of food |
| Duodenum | Receives bial from gall bladder and pancreatic juices; 10 inches; attached to post abdominal wall; retroperitoneal |
| Jejunum | 6-8 feet peritoneal; supported by mesentery |
| Ileum | 12-16 feet; supported by mesentery |
| Large Intestine | Absorption of water/vitamin K; stores undigested food |
| Liver | Produces bile for lipid digestion (emulsification of lipids) |
| Gallbladder | Stores and concentrates bile |
| Pancreas | Produce digestive enzymes for all food types |
| Digestive Tract: Tissue 1 | Mucosa (epithelial cells) |
| Digestive Tract: Tissue 2 | Submucosa (blood and lymph vessels) |
| Digestive Tract: Tissue 3 | Smooth Muscle |
| Digestive Tract: Tissue 4 | Serosa |
| Peristalsis | Wave like movement that propels food in digestive tract |
| Digestion | Chemical and mechanical breakdown of foodstuff |
| Absorption | Transfer of digested food from digestive tract to circulation |
| Villus (microvilli) | Finger-like projections in small intestine for food absorption |
| Diarrhea | Abnormally frequent watery bowel movements |
| Constipation | Difficulty with defecation |
| Cirrhosis | Liver disease in which liver cells are replaced by scar tissue (Digestive disorder) |
| Hepatitis | Inflammation of liver (Digestive disorder) |
| Jaundice | Yellowish discoloration of skin; usually due to bile in blood Digestive disorder) |
| Anorexia Nervosa | Psychological disorder resulting in starvation (Eating disorder) |
| Bulimia Nervosa | Binge-purge syndrome (Eating disorder) |
| Obesity | Being 20% or more above abnormal weight (Eating disorder) |
| Fiber in diet | Helps regularity and helps prevention of cancer |
| Carbohydrates | Bread, pasta, rice |
| Lipids | Butter, margarine, oils |
| Proteins | red meat, fish, poultry, beans, peas |
Created by:
Jeverette
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