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Digestion and Absorption

Human Alimentary Canal

Digestion

  • It is the chemical and mechanical breakdown of complex nutrients into simple absorbable forms.

 

Human digestive system or alimentary canal

 

  • Alimentary canal is a long tube that extends from the mouth to the anus.
  • It consists of mouth, buccal cavity, pharynx, oesophagus, stomach, small intestine, large intestine, rectum, and anus.
  • The accessory digestive glands include salivary glands, the liver, gall bladder, and the pancreas.
  • Digestion of food begins in mouth. It includes teeth, saliva, and tongue.

 

  • Teeth
  • Diphyodont: Two successive sets of teeth, which are deciduous (milk teeth) and perm…

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