Tuesday 4 September 2012

Nutrition

Digestive system

The alimentary canal ---consists of--- mouth, esophagus, stomach, small intestine, large intestine, rectum, anus

The accessory organs ---consist of--- salivary glands, liver, gall-bladder, and pancreas
(not part of the alimentary canals but produce/store substances required for digestion.)

2 Types of digestion

  • Mechanical digestion
          ->physical digestion
          ->move in some way over and over/ repeatedly.
          (e.g. stomach, mouth aided by teeth)
  • Chemical digestion
          ->break down of foor using enzymes
          (e.g. small intestine, stomach, mouth-salivary amylase)