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22 Cards in this Set
- Front
- Back
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The mouth is also known as the _______ ______
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Oral cavity
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The opening between the lips is called the _________
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oral fissure
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the posterior opening of the throat is called the _____
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fauces
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What kind of epithelium is the mouth lined with?
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Stratified squamos epithelium
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The epithelium of the mouth is _____ in areas subject to the greatest food abrasion, such as the ____ and ____
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Keratinized, Gums, Hard palate
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What is the labial frenulum?
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It is a median fold that attaches each lip to the gum
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What is the vestibule
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The space between the cheeks or lips and teeth; where your toothbrush is when brushing the outer surfaces of your teeth
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The lips are divided into three areas. What are these three areas?
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1.) the cutaneous area- the upper lip
2.) the red area- it has unually tall dermal papillae, which allow blood capillaries and nerve endings to come closer to the epidermal surface. 3.) The labial mucosa- inner lip |
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What are lingual papillae
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They are bumps and projections on the surface of the tongue and are the site of taste buds.
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What is the posterior 1/3 of the tongue called
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the root
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What is the anterior 2/3 of the tongue called
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the body and it occupies the oral cavity
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What is contained in the boundary between the two regions of the tongue
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V-shaped Vallate papillae
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What is the lingual frenulum
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the attachment of the body of the tongue to the floor of the mouth
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What are the intrinsic muscles and what do they do?
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They are the muscles contained entirely within the tongue which produce relatively subtle tongue movements of speech
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What do the extrinsic muscles do?
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they have origins elsewhere and insertions in the tongue, produce the stronger movements of food manipulation.
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What are the 4 extrinsic muscles of the tongue
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genioglossus, hyoglossus, palatoglossus and styloglossus
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These secret a portion of the saliva
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Lingual glands
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transverse ridges of the hard palate are _______
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palatine rugae
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The conical projection of the soft palate
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Uvula
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What does the Uvula do?
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It helps to retain food in the mouth until one is ready to swallow
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What does saliva do?
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It moistens the mouth, digests a little starch and fat, dissolves molecules so they can stimulate the tastebuds, and moistens food and binds particles together to aid in swallowing
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What are the solutes of saliva?
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1.) Salivary Amylase- begins starch digestion in the mouth
2.) Lingual Lipase- enzyme activated by stomache acid and digests fat after the food is swallowed 3.) Mucus- binds and lubricates food mass and aids in swallowing. 4.)Lysozyme- ezyme that 5.) Immunoglobulin A- an antibody that inhibits bacterial growth 6.) electrolytes- sodium, potassium, chloride, phosphate and bicarbonate salts |
