digestive system
TRANSCRIPT
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Digestion from the Mouth• Tongue – pushes the
food to the back of your mouth
• Pharynx - an alimentary canal where food goes down after the digestion in the mouth
Bolus – a soft, mass of rounded ball of food that is being chewed
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a flap of tissue that closes over the trachea to prevent the food from entering
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Pyloric valve or sphincter – opens and closes to allow the food getting in the small intestine
Cardiac sphincter – closes and opens to allow the flow of food from the esophagus to the stomach
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Digestion in the Small Intestine
3 Major Parts1. duodenum – upper 20
cm2. jejunum – 2.5 meters
long3. ileum – longest half
coiled into the abdominal cavity
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secretes pancreatic juice that neutralizes the acid in the stomach
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Undigested food goes down into the large intestine
It is where the absorption of water is happenIt is also called as colon
FECES – remaining food material
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End of the alimentary canal
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How can we take care of our digestive system?
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Video
http://www.youtube.com/watch?v=08VyJOEcDos