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Oral Cavity Terms
150
30
Dentistry
Professional
09/19/2012

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Term
Lips
Definition
Externally forms the anterior border of the mouth by skin and internally by mucous membrane.
Term
Labial Nasal Sulcus
Definition
Indentation from the ALA of the nose to the lateral borders of the lips.
Term
Commissure of mouth
Definition
The lateral union of the upper and lower lips to form the external corners of the mouth.
Term
Philtrum of upper lip
Definition
Median vertical groove fromthe center of nostrils to middle of upper lip.
Term
Vermilion border
Definition
Margin formed representing the zone of transition from the red skin of the lips to the mucious membrane.
Term
Labial Mucosa
Definition
Inner mucosa lining of the lips.
Term
Musculature of Lips
Definition
Muscle fibers which cause lip action of closing and protruding.
Term
Minor Salivary Glands of Lower Lip
Definition
Small glands which border the lower lip that secrete mucous.
Term
Oral Cavity Proper
Definition
Space within the arches of the teeth.
Term
Vestibule
Definition
Part of the oral cavity that lies between the teeth and the lips, or between the risidule ridges and cheeks.
Term
Oral Mucosa
Definition
Lining of the oral cavity. Lining "mucosa." Covers the inside surface of the cheek, vestibule surfaces, lips, ventral surfaces of the tongue and soft palate.
Term
Frenum
Definition
A narrow fold of mucous membrane attaching the cheeks and lips to the madib and max mucosa. It extends from and more fixed to a moveable part, limmiting the motions of the lips and cheeks.
Term
Palate
Definition
Roof of the mouth
Term
Anterior Palate
Definition
Hard portion, ends inthe max 3rd molars, 2/3 of the palate is hard.
Term
Posterior Palate
Definition
Soft portions, 1/3 of the palate is soft. Most common site for intra-oral cancer.
Term
Incisive Papilla
Definition
A pear-shaped or oval structure formed of dense connective tissue.
Term
Palatine Rugae
Definition
Elevations of soft tissue extends laterally from the midline of hard palate.
Term
Uvula Palatine
Definition
Small U-shaped fleshy mass hanging from the soft palate at the midline aboive the rooth portion of tongue.
* Helps to raise the soft palate for speech. The uvula contains an elevation action which raises teh soft palate to aid in speech. (hangy bally)
Term
Palatine Tonsil
Definition
Small rounded mass of lymphoid tissue, located on each side of the tongue at the posterior area of the mouth.
Term
Anterior & Posterior Pillars of the Fauces
Definition
Two folds of mucosa membrane running from the uvula to the sides of the baseof the tongue. Between these membranes lie the palatine tonsils.
Term
Maxillary Tuberosity
Definition
Bony prominence at the end of the maxillary alveolar process on either side.
Term
Retro Molar Pad
Definition
Pad of tissue that covers the end of the mandib alveolar process on either side.
Term
Gingiva
Definition
Mucous membrane which covers the alveolar process and surrounds the teeth.
Term
Gingival Margin
Definition
Crest of the gingiva, the highest point of the free gingiva.
Term
Free Gingiva
Definition
Part of the gingiva which is higher than the epithelial attachments and is not bound to underlying tissue.
Term
Free Gingival Groove
Definition
Shallow groove which runs parallel to the margine of the gingiva.
Term
Attahced Gingiva
Definition
Gingival tissue extending from the base of the sulcus to the muco-gingival junction. When healthy is stippled dense tissue.
Term
Tongue
Definition
Large, active, voluntary muscle anchored at its posterior base and free at its anterior tip of apex.
Term
Lingual Frenum
Definition
Connects the tongue to the floor of the mouth.
Term
Naso-Labial Groove
Definition
Indentation from the ALA of the nose to the corners of the mouth.
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