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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Digestion |
The breakdown of food into particles that are small enough to pass into body cells |
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Sequence of digestion |
Ingestion- Taking in food Digestion - Breaking down food Absorption - absorbing nutrients into blood Egestion - Removal of unabsorbed and undigested material
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Isabel Dates Adam Evans |
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Teeth |
Incisors - Cutting slicing and biting Canines - Grip stab and tear Molars - crush and chew PreMolars - crush and chew |
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Mechanical Digestion |
Carried out by teeth, results in smaller particles of food |
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Chemical Digestion |
Takes place due to the action of Amylase, found in saliva. Saliva consists of water, salts, mucous, and Amylase, and lysozyme. |
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Peristalsis |
Peristalsis moves food through the alimentary canal. In the stomach it helps to break down food mechanically. In the small intestine it moves food forward and back. In the large intestine it forces water into the rectum |
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Role of Fibre |
Fibre absorbs and stores water causing waste to expand and muscles to contract. |
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Food in the Stomach |
Food is digested in the Stomach by gastric juice. It consists of pesinogen, mucous and hydrochloric acid. The stomach protects itself from self digestion by lining itself with mucous, and the cells that line the stomach are tightly packed. |
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Role of Pancreas |
-Secretes Insulin and digestive materials which form pancreatic juice Starch ______ amylase_____ maltose Lipids________lipase_______ fatty acids and glycerol |
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Role of Liver |
- Produces Bile - Breaks down amino acids to form urea - Stores vitamins - Produces heat Bile: Salts pigments and water Made in the liver, stored in the gall bladder Emulisfies lipids |
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Small Intestine |
Composed of dueodenum and illium Dueodenum - |
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