Digestive system
- Created by: rubyna
- Created on: 31-03-16 10:35
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- Structure
- Oesophagus: Muscles along oesophagus tighten and relax in a 'wave' downwards and the food is moved into the stomach
- Mouth: chewing, breaks down food, saliva mixes with food to break it down -->MSDAE
- The Digestive System
- Diabetes
- Causes
- Metabolic imbalance of pancreas
- Family history
- High cholesterol
- High Blood Pressure
- Obesity
- Race/ Ethnicity
- Symptoms
- Dehydration
- Weightloss
- Vision problems
- fatigue
- If not controlled effectively: HBP, Heart attack, infection, limb amputatuion
- Tingling in hand and feet
- Treatment
- Type 1: insulin injection everyday, oral drugs, insulin thereapy
- Lifestyle choices: diet and exercise
- Diagnostics
- Blood sugar
- Causes
- Diabetes
- Stomach: Temporary storage for food eaten. Sromach 'churns'; food is mechanically broken down.cell lining prduces 'gastric juice'; this is needed so the body can obtain nutrients. chyme is produced.
- 'gastric juice' contains pepsin and intrinsic factor. Acid in juice allows pepsin to begin the chemical breakdown of the food into proteins.
- Small Intestine: Duodenum--> main site for absorption. Jujenum--> Where final juices help digestion are secreted by cells in the lining.
- gallbladder releases bile into duodenum. Bile emulsifies fat. Pancreas releases pancreatic juices into duodenum.
- Juice contains a mixture of enzymes to break down the fat, protein and carbs.
- gallbladder releases bile into duodenum. Bile emulsifies fat. Pancreas releases pancreatic juices into duodenum.
- Ileum: Where remaining nutrients are absorbed. Bile salts are also absorbed to be recycled by the body, Vitamin B12 is absorbed.
- The large Bowl:3 sections --> caecum, Colon (removes water, salts and nutrients forming stool) and rectum (stool passes through this)
- Pancreas: secretes digestive enzymes. Enzymes break down, protein, fats and carbs. Also makes insulin
- Liver: Process nutrients absorbed from small intestine. Detoxifies potentially harmful chemicals.
- Gallbladder: Stores extra bile
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