CHAPTER 27 THE DIGESTIVE SYSTEM
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47 Terms
The main events in human nutrition
Nutrition
Ingestion
Digestion
Mechanical digestion
Chemical digestion
Starch
Protein
Lipids
Absorption
Egestion
Alimentary canal
A number of glands/organs are attached
A gland
An organ
Mouth
Incisors
Canines
Premolars
Molars
Chemical digestion in the mouth
Pharynx and epiglottis (swallowing)
Oesophagus
Peristalsis
Stomach
Hydrochloric acid functions
Mechanical digestion in stomach
Storage and peristalsis - chyme in stomach
Small intestine: duodenum
Pancreas -produces NaHO3 and digestive enzymes
Functions of liver
Gall bladder
Functions of bile
End products of digestion
Digestive substances
Made in
Active in
Acts on
Produces
Ileum
Villus
Absorption: Water soluble nutrients
Absorption: fat soluble nutrients
Adaptations of the ileum and villi
Large intestine
Caecum and appendix
Colon
Rectum
Anus
Balanced diet
Importance of balanced diet:
Health
Age
Gender
Suffcient water
Activity
Dietary fibre
Role of fibre
SustaInable eating
Food production in sustainability
Factorys relating to food sustainability
Note 
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