Term
| Oral Cavity (1st chamber of the mouth) |
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Definition
| chamber that extends from teeth/gums to pharynx |
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Term
| Vestibule (2nd chamber of the mouth) |
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Definition
| narrow space between teeth, cheeks and lips |
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Term
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Definition
| Starting place for carb digestion; receives food and starts digestion by chewing 7 mixing with saliva; surrounded by cheeks, lips, tongue, and palate |
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Definition
| forms roof of oral cavity---------Anterior portion-hard palate----------Posterios portion- soft palate---------Extension of soft palate-uvula |
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Term
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Definition
| lymphatic tissue lateral to palate; protects body against infections |
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Term
| Pharyngeal Tonsils (adenoids) |
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Definition
| lymphatic tissue on posterior pharynx; protects body against infections |
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Term
| Primary (deciduous) Teeth |
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Definition
| number 20, erupt from 6-32 months, lost between 6-12 years |
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Term
| Secondary (permanent) Teeth |
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Definition
| push the primary teeth out of their sockets, number 32 (16 in each jaw), erupt from 6 yrs to adulthood |
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Term
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Definition
| front teeth; chisel-shaped (4 central + 4 lateral), breaks food into bite-size pieces |
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Term
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Definition
| canine (eye) teeth; cone-shaped (4 total); grasp and tear food |
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Term
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Definition
| flattened surface; (first 4, second 4); grinding food particles |
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Definition
| flattened surface; (first 4, second 4, third 4); grinding food particles |
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Definition
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Term
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Definition
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Term
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Definition
| covering on crown; Ca salts; hardest substance in body |
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Term
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Definition
| bulk of tooth; substance similar to bone but harder |
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Term
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Definition
| central cavity inside dentin |
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Term
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Definition
| located in pulp cavity with blood vessels and erves as well as connective tissue called pulp |
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Term
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Definition
| thin layer of bonelike material enclosing the root, surrounded by periodontal ligament that attaches the tooth to the jaw |
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Definition
| secrete salive, function as lubrication, bind food together,********* begins chemical digestion of carbs *********** |
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Definition
| breaks polysaccharides into disaccharides; starch to disaccharides and glycogen to disaccharides |
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Definition
| the largest salivary gland; lie between the skin of the cheek & the masseter muscle |
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Term
| Submandibular Salivary Glands |
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Definition
| floor of mouth; on the inside surface of the lower jaw |
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Term
| Sublingual Salivary Glands |
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Definition
| floor of mouth; inferior to the tongue |
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Term
| 2 Types of cells composing each salivary gland |
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Definition
| mucous cells-secretes mucus that binds food together====================serous cells-secretes watery substance containing the digestive enzyme salivary amylase |
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Term
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Definition
| cavity posterior to the mouth that connects the nasal and oral cavities with the larynx and esophagus; no digestion occurs but important swallowing mechanism |
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Definition
| interconnected with nasal cavity; passageway for air during breathing; location of auditory tubes |
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Term
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Definition
| passageway for food from the mouth and for air from the nasal cavity |
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Term
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Definition
| located inferior to oropharynx; passageway to the esophagus |
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Term
| First Stage of Swallowing Mechanism (Voluntary) |
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Definition
| food is chewed & mixed with saliva; then tongue rolls this mixture into a mass called bolus at back of pharynx |
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Term
| Second Stage of Swallowing Mechanism (Involuntary) |
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Definition
| sensory receptors are stimulated and swallowing relfex is triggered, epiglottis closes over larynx, muscles in lower pharynx relax so esophagus opens, food is forced into esophagus |
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Term
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Definition
| passageway for food from pharynx to stomach, location:mediastinum behind traches, many mucous glands |
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Term
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Definition
| gravity, peristaltic waves from esophagus meet lower esophageal sphincter, sphincter muscles relax, swallowed food moves into stomach |
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