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What are the associated glands of the human alimentary canal?
- Salivary glands
- Liver
- Pancreas
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Do the ileum and duodenum belong to the small or large intestine?
Small intestine: ileum, duodenum, jenenum.
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Do the colon, caecum and appendix belong to the small or large intestine?
Large intestine: colon, caecum, appendix.
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What kind of digestion is performed by the mouth?
- Physical digestion by teeth.
- Chemical digestion by salivary amylase, produced by salivary glands (involves enzymes).
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How does the mouth perform physical digestion?
- By teeth
- Chewing reduces the food to smaller pieces which increases surface area for enzymes to work on.
- Using teeth and tongue, the food is formed into a bolus ready for swallowing.
- Epiglottis prevents food entering trachea.
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How does chewing help with digestion?
Chewing reduces food to smaller pieces which increases surface area for enzymes to work on.
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By using teeth and tongue, food is formed into what?
Using teeth and tongue, food is formed into a bolus ready for swallowing.
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When food is formed into a bolus what is it ready due next?
Using teeth and tongue food is formed into a bolus ready for swallowing.
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What stops food entering the trachea ?
Epiglottis stops food entering the trachea.
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What are the 3 types of teeth?
- Incisor: sharp, chisel shaped for cutting, biting.
- Canine: long pointed fangs for gripping, tearing.
- Molars and Premolars: rounded tops for crushing, grinding.
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What is the incisor for?
Incisor: sharp, chisel shaped for cutting , biting.
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What is the canine for?
Canine: long pointed fangs for gripping, tearing.
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What are the molars, premolars for?
Molars, Premolars: rounded tops for grinding, crushing.
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What can determine the type of teeth an animal has ?
The diet of animal will determine what type of tooth it has.
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What is the Human Dental Formula?
2(I 2/2 C1/1 PM 2/2 M 3/3)
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How many incisors should an adult human have?
8 = 2(I 2/2)
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How many canine teeth should an adult human have?
4 = 2(C 1/1)
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How many premolars and molars should an adult human have ?
20. = 2(PM 2/2 M 3/3)
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How many total permanent teeth should and adult human have?
32 permanent total teeth
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How many teeth are there in a child set?
Child set 20 teeth (has no molars)
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Why has a child set have less teeth than an adult set ?
- Adult total teeth 32
- Child set 20
- Child set has no molars
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What are the two incisors called?
- Central incisor
- Lateral incisor
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What are the two premolars called?
- First premolar
- Second premolar
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What are the three molars called?
- First molar
- Second molar
- Third molar
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