Digestion using the mouth, teeth, tongue, pharynx, and spit

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Digestion using the mouth, teeth, tongue,
pharynx, and spit!
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The Mouth

• Consists of

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Teeth
There are four types of teeth Molars- teeth that
grind food Pre-molars- you have 8 of them located
in pairs in front of molars (two top-left, two
top-right, two bottom-left, and two
bottom-right Incisor teeth- teeth used for
cutting and gnawing Canine teeth- pointed teeth
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Tongue
The tongue is a movable organ on the floor of a
human mouth. Uses Gives humans taste Helps
humans speak Helps humans eat
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Pharynx

• The pharynx is the upper part of the throat where
  air passes to the lungs.
• Bolus- clump of chewed food
• When swallowing a bolus a cartilage flap called
  the epiglottis closes so that food does not enter

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Spit

• Spit is another term for saliva
• Saliva is a liquid that contains digestive
  enzymes, mucus, and other chemicals.
• Saliva neutralizes some chemicals in food that
  cause your teeth to decay

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Bibliography

• Slide 1- clip art
• Slide 2- http//weblogs.newsday.com/sports/watchdo
  g/blog/mouth-diseases.jpg
• Slide 3- www.diyfather.com
• Slide 4- clip art
• Slide 5- dictionary.thefreedictionary.com
• Slide 6- lesse31.blogspot.com