The digestive system of humans consists of an alimentary canal and associated digestive glands. The alimentary canal consists of the mouth, buccal cavity, pharynx, oesophagus, stomach, small intestine, large intestine, rectum and the anus. The accessory digestive glands include the salivary glands, the liver (with gall bladder) and the pancreas. Inside the mouth the teeth masticates the food, the tongue tastes the food and manipulates it for proper mastication by mixing with the saliva. Saliva contains a starch digestive enzyme, salivary amylase that digests the starch and converts it into maltose (disaccharide). The food then passes into the pharynx and enters the oesophagus in the form of bolus, which is further carried down through the oesophagus by peristalsis into the stomach. In stomach mainly protein digestion takes place. Absorption of simple sugars, alcohol and medicines also takes place in the stomach.
Digestion And Absorption
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Videos ❯
🗘Digestion and Absorption for A-level Biology: Carbohydrates, proteins and lipids (micelles)
Learn how carbohydrates, proteins and lipids are digestion and absorbed. Absorption starts 8 minutes into the video. For revision ...
More Videos ❯
Digestion and Absorption for A-level Biology: Carbohydrates, proteins and lipids (micelles)
Learn how carbohydrates, proteins and lipids are digestion and absorbed. Absorption starts 8 minutes
Human digestive system - How it works! (Animation)
In this video all digestive organs of the human body are explained in detail and their functioning i
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