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Glossary of Digestive-5

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Alveolar process
An arch that contains the alveoli sockets of the teeth
Gingivae
(gums)Cover alveolar process of the mandible and maxillae and extend slightly into each socket
Periodontal ligament
Periosteum lining the alveoli for teeth in the alveolar processes of the mandible and maxillae
Crown
Visible portion of the tooth above the level of the gums
Neck
Constricted junctin of crown and root near the gum line
Root
Inferior to neck, embedded in each socket
Enamel
Calcium phosphate and carbonate; 95% calcium salts
Dentin
Esp. calcified conn. tissue
Pulp cavity
w/in the dentin; cavity w/in the crown+neck of the tooth, filled with pulp
Pulp
Conn. tissue containing blood vessels, nerves, and lyphatic vessels
Root canals
Narrow extensions of pulp cavity lying w/in root of tooth
Apical foramen
?
Cementum
Attaches to periodontal ligament
Deciduous teeth
Primary teeth, milk teeth, baby teeth
Charateristics of Deciduous dentition
Erupt at 6 mos.
One pair appear each month
20 count
Primary dentition includes;
Incisors (central& lateral)
Cuspids (canines)
1st and 2nd molars
Primary dentition lost at what age?
6-12 years; replaced by permanent dentition
Characteristics of permanent dentition
Appear at age 6 to adulthood; replace deciduous dentition
32 count
Permanent dentition includes;
Incisors
Cuspids
1st & 2nd pre molars (bicuspids)
1st,2nd,3rd molars
Do molars replace deciduous dentition?
No!
Mastication
To chew
Bolus
The food mass that is formed by chewing, mixing, and pressed together with the tongue
Deglutition
To swallow- this pushes food to the stomach

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