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Oral Anatomy: Chapter 2 - Vocab

Terms in this set (74)

Facial
The structures closest to the facial surface
Labial
Facial structures closest to the lips
Buccal
Facial structures closest to the inner cheek
Lingual
Structures closest to the tongue
Palatal
Lingual structures closest to the palate
Vestibules
The upper and lower horseshoe-shaped spaces in the oral cavity between the lips and cheeks anteriorly and laterally and the teeth and their soft tissue medially and posteriorly are considered:
Oral mucosa
Oral vestibules are lined by:
Labial mucosa
Inner parts of the lips are lined by a pink:
Buccal mucosa
The labial mucosa is continuous with the equally pink:
Buccal fat pad
The buccal mucosa covers a dense pad of underlying fat tissue at the posterior part of each vestibule:
Mastication
The buccal fat pad acts as a protective cushion during:
Parotid papilla
Small elevation of tissue that protects the opening of the parotid duct
Vestibular fornix
Where pink labial mucosa or buccal mucosa meets the redder alveolar mucosa at the mucobuccal fold
Labial frenulum
A fold of tissue located at the midline between the labial mucosa and the alveolar mucosa on the upper and lower dental arches
Fordyce spots
Visible as small, yellowish elevations on the oral mucosa; represent deeper deposits of sebum from trapped or misplace sebaceous gland tissue
Linea alba
White ridge of hyperkeratinization that extends horizontally at the level where the maxillary and mandibular teeth come together and occlude
Maxilla
Consists of two bones that are sutured together during development
Mandible
Single bone with a movable articulation with the temporal bones at each temporomandibular joint
Alveolar process
Bony extension for both the maxilla and mandible that contain each tooth socket of the teeth
Periodontal ligament
All the teeth are attached to the bony surface of the alveoli by:
Crown
Composed of the extremely hard outer enamel layer and the moderately hard inner dentin layer overlying the pulp of the tooth
Enamel
Extremely hard outer layer
Dentin
Moderately hard inner layer
Pulp
Soft innermost layer in the tooth
Cementum
The outermost layer of the roots that attaches to the periodontal ligament
Dental arches
The alveolar processes with the teeth in the alveoli are also called:
Maxillary tuberosity
Just distal to the last tooth of the maxillary arch is a tissue-covered elevation of the bone
Retromolar pad
On the lower jaw is a dense pad of tissue located just distal to the last tooth of the mandibular arch
Primary teeth
The tooth types in both arches of the teeth of children
Incisors; canines; molars
The teeth types in children:
Permanent teeth
Adult teeth
Incisors; canines; premolars; molars
The adult teeth or permanent teeth include:
Incisors; canines
Anterior teeth are:
Molars; premolars
Posterior teeth are:
Anterior superior alveolar artery
The permanent maxillary anterior teeth are supplied by the:
Posterior superior alveolar artery
The permanent maxillary posterior teeth are supplied by the:
Branches of the inferior alveolar artery
All of the permanent mandibular teeth are supplied by the:
Posterior superior alveolar vein
The maxillary teeth are drained by the:
Inferior alveolar vein
The mandibular teeth are drained by the:
Exotoses
Localized developmental growths of bone with a possible hereditary etiology and may be associated with occlusal trauma
Single; multiple; unilateral; bilateral
Exotoses may be:
Mandibular torus/tori
A developmental growth of bone with a possible hereditary etiology and may be associated with bruxism
Bruxism
Another word for grinding:
Bilateral
Torus/tori are generally:
Mandibular torus/tori
Usually present bilaterally in the area of the premolars and can present surface cleating, appear lobulated or nodular, or even contact each other over the midline
Mandibular torus/tori
Covered in oral mucosa and vary in size; slow growing and asymptomatic lesions, which may be seen on radiographs as radiopaque masses
Mandibular torus/tori
May interfere with speech, oral hygiene procedures, radiographic film placement and analysis, as well as prothesis therapy of the mandibular alveolar process
Mucogingival junction
The line of demarcation between the firmer and pinker attached gingiva and the movable and redder alveolar mucosa is the scallop-shaped:
Marginal gingiva
Forms a cuff above the neck of the tooth
Free gingival groove
Separates the marginal gingiva form the attached gingiva
Interdental gingiva
Gingival tissue between adjacent teeth adjoining attached gingiva
Oral cavity proper
The inside of the mouth
Fauces
The posterior opening from the oral cavity proper into the pharynx or throat
Palate
Roof of mouth
Palate
Separates the oral cavity from the nasal cavity
Hard palate
Firmer anterior part of the palate
Median palatine raphe
Midline ridge of tissue on the hard palate that overlies the bony fusion the palate
Palatine rugae
Firm, irregular ridges of tissue radiating from the incisive papilla and raphe
Base of the tongue
Posterior 1/3 of the tongue that lies in the oral part of the throat
Body of the tongue
Anterior 2/3 of the tongue that lies in the oral cavity proper
Dorsal surface
The top of the tongue that has a midline depression corresponding to the position of a midline fibrous structure deeper in the tongue and fusion tissue area
Lingual papillae
Small, elevated structures of specialized mucosa on the dorsal surface of the tongue
Filiform lingual papillae
Give the dorsal surface its velvety texture
Fungiform lingual papillae
Mushroom shaped dots on the dorsal surface
Sulcus terminalis
Separates the base from the body of the tongue, demarcating a line of fusion of tissue during the tongue's development
Circumvallate lingual papillae
Line up alone the anterior side of the sulcus terminals on the body of the tongue
Lingual frenum
A midline fold of tissue between the ventral surface of the tongue and the floor of the mouth
Sublingual fold
Contain openings of the sublingual duct from the sublingual salivary gland
Sublingual caruncle
Small papilla at the anterior end of each sublingual fold contains openings of the submandibular duct and sublingual duct from both their glands
Pharynx
Deeper structure of the throat that is a muscular tube that has both respiratory and digestive system functions
Nasopharynx; oropharynx; laryngopharynx
Three divisions of the pharynx:
Nasopharynx
Division of the pharynx that is superior to the level of the soft palate; continuous with the nasal cavity
Oropharynx
Divison of the pharynx that is between the soft palate and the opening of the larynx; considered the oral part of the pharynx and is visible for the most part to the dental professional
Laryngopharynx
The more inferior division of the pharynx close to the laryngeal opening
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