21 Root of tooth. Radix dentis. Portion of the tooth covered by cementum. E
22 Apex of root of tooth. Apex radicis dentis. E
23 Clinical root. Radix clinica. Portion ofthe tooth situated below the gum. C
24 Occlusal (masticatory) surface. Facies oc-clusalis (masticatoria) dentis. B E
25 Vestibular (facial) surface. Facies vestibularis (facilis) dentis. Tooth surface facing the vestibule. D G
25 a Buccal surface. Facies buccalis dentis. Tooth surface facing the cheek.
25 b Labial surface. Facies labialis dentis. Tooth surface facing the lips.
26 Lingual and palatine surfaces. Facies lingualis/ palatalis dentis. Tooth surfaces facing the tongue and palate, respectively. A G
27 Approximal surface. Facies approximalis. Tooth surface facing the adjacent tooth. G
28 Mesial surface. Facies mesialis. Vertical contact surface of a tooth turned away from the last molar. G
29 Distal surface. Facies distalis. Vertical contact surface of a tooth facing away from the first incisor. G
29 a Contingent area. Area contingens. Direct contact surface of adjacent teeth.
30 Cingulum. Ridge near the neck of a tooth connecting both marginal crests at the lingual surface of incisor and canine teeth. A
31 Marginal crest. Crista marginalis. Lateral marginal ridge on the lingual surface of the incisor and canine teeth which goes over into the cingulum at the neck region. A
32 Incisal margin. Margo incisalis. Occlusal edge of incisor and canine teeth. A
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.