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Orofacial Lamdmarks
Orofacial landmarks as covered on the Toothful exchange website and MCC's Oral Anatomy and Physiology class
61
Dentistry
Not Applicable
10/05/2014

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Cards

Term
Philtrum
Definition
Depression the runs from midline of the upper lip to the base of the nose (external)
Term
Labial Tubricle
Definition
Elevated fleshy prominence of mucosa at the midline of the upper lip (external), base of the philtrum
Term
Labial Commissures
Definition
Corners of the mouth where lips meet (external)
Term
Labiomental Groove (Mentolabial Fold)
Definition
Separates lower lip and chin (external)

TRANSVERSE groove INFERIOR to the lower lip

Can be a sign of dentures
Term
Nasiolabial Sulcus
Definition
From ALA of the NOSE to COMMISSURES of LIPS.

On either side of the nose.

Separates lips/nose from cheeks.
Term
Dorsal Surface of Tongue
Definition
Most occlusal/incisal portion
Term
Ventral Surface of Tongue
Definition
Bottom of tongue. Can be seen when lifting the tongue up
Term
Median Sulcus of Tongue
Definition
Separates dorsal surface into right and left sides
Term
Sulcus Terminalis
Definition
V-shaped groove located posterior to circumvalate papillae
Term
Foramen Caesum
Definition
Depression/hole at the apex of the sulcus terminalis
Term
Ala of the Nose
Definition
Corners (sides) of the nose

Widest, fleshy portion of the nose
Term
Labiomarginal Sulcus (Buccolabial Fold)
Definition
Separates lips from the cheeks

Deepens with age with "chubby" cheeks
Term
Smyphysis
Definition
Slightly raised area at the midline of the chin
Term
Commisure Definition
Definition
Band of fibers joining opposite, corresponding/relating parts
Term
Vermillion Boarder
Definition
Separates lips from skin of the face and oral cavity mucosa

Where lip liner is applied
Term
Vermillion Zone
Definition
RED part of the lips, covered with a thin epithelium layer. Covers many capillaries.

Where lipstick is applied
Term
Rima Oris
Definition
Outside opening of oral cavity
Term
Vestibule
Definition
Chamber between the lips/teeth area and the cheeks/teeth area
Term
Muccobuccal Fold
Definition
Buccal/labial molar area where the lip meets the cheek

Cotton rolls can be placed here for cotton roll isolation
Term
Oral Cavity Proper
Definition
Where the tongue fills and rests naturally
Term
Fauces
Definition
Posterior opening of the mouth passage, leading the Oral Cavity Proper to the Orophaynx

AKA back of the mouth
Term
Labial Frenum (Maxillary and Mandibular)
Definition
Secures lips to the gingival mucosa in the vestibule
Term
Maxillary (Superior) Labial Frenum
Definition
Holds upper lip to mucosa. May cause a diastema (Separation of maxillary central incisors due to pulling from speaking)
Term
Mandibular (Inferior) Labial Frenum
Definition
Attaches lower lip to mucosa

May be big or small

May cause periodontal problems OR interfere w/wearing a denture
Term
Buccal Frenulum
Definition
Folds of tissue attaching the cheeks to the gingiva
Term
Buccal Frenum
Definition
Around canine/premolars
Term
Parotid Papilla
Definition
On buccal mucosa, opposite the maxillary molars

Covers opening of Stenson's Duct
Term
Fordyce's Granules
Definition
Off-white or yellowish slightly elevated misplaced sebaceous glands

Clinically INSIGNIFICANT
Term
Linea Alba
Definition
White line on inside of cheeks along area of occlusion and cheek
Term
Hard Palate
Definition
Anterior 2/3's of roof of mouth. Made up for 4 bones
Term
Median Palatine Raphe
Definition
Fold/band of tissue that separates hard palate into equal right and left halves

Covers median palatine SUTURE (where two bones meet)
Term
Palatine Rugaue
Definition
Wrinkly area lingual to the maxillary incisors

May help roll bolus of food before deglutition (swallowing)
Term
Incisive Papilla
Definition
Fleshy prominence at the midline just posterior to the maxillary CI
Term
Soft Palate
Definition
Posterior 1/3 of mouth w/o bony support underneath
Term
Uvula
Definition
Lower boarder of the soft palate at the midline

Guards the opening of the nasal cavity and upper pharynx

Prevents foods/liquids from entering during Deglutition

Originates on the posterior nasal spine

Supports and gives strength to the soft palate
Term
Pterygomandibular Raphe (fold)
Definition
Connects maxillary arch to the mandibular arch

From the Maxillary Tuberosity TO THE Retromolar pad
Term
Raphe
Definition
Band of tissue connecting opposite parts
Term
Maxillary Tuberosity
Definition
Posterior to last molar of MAXILLARY ARCH
Term
Retromolar Pad
Definition
Posterior to last molar on MANDIBULAR ARCH

Covers the Retromolar Triangle (bony area)
Term
Pillars of the Fauces
Definition
Muscle Tissue that surrounds the fauces
Term
Palatoglossal Fold
Definition
Most ANTERIOR Tonsillar Pillar

Anterior lateral boarder of the fauces

Helps constrict fauces during deglutition
Term
Palatopharyngeal Fold (arch)
Definition
Most POSTERIOR Tonsillar Pillar
Term
Palatine Tonsils
Definition
Mass of lymphatic tissue between Anterior Pillar (palatoglossal fold) and Posterior Pillar (Palatopharyngeal fold)
Term
Fovea Palatinus
Definition
Small depressions (pits) at midline along boarder between the hard and soft palates

Opening of ducts from minor palatal salivary glands
Term
Tongue
Definition
BODY- Anterior 2/3

ROOT- Posterior 1/3
Term
Dorsal Surface of Tongue
Definition
Top surface of tongue (considered the back)
Term
Ventral Surface
Definition
Underside of the tongue (considered to be the front)
Term
Median Lingual Sulcus
Definition
Vertical division along midline of the dorsal surface of the tongue
Term
Filiform Papilla
Definition
Numerous, tiny hair-like projections

Covers most of dorsal surface

NO TASTE BUDS

TACTILE (Touch) sensation
Term
Fungiform Papilla
Definition
Mushroom-shaped, larger, less numerous

Some may have taste buds
Term
Foliate Papilla
Definition
On lateral boarders of the tongue

Scalloped
Term
Circumvallate Papilla
Definition
At division of body and root

Large, circular shaped, in a V-shaped row

Contains the taste buds
Term
Sulcus Terminalis (terminal sulcus)
Definition
V-shaped linear depression near root of the tongue
Term
Foramen Cecum
Definition
Small depression where the thyroid glad developed during embryonic development
Term
Lingual Frenum
Definition
Band of tissue attaching tongue to floor of mouth at the midline
Term
Ankloglossia
Definition
Restricted tongue movement due to having a shortened lingual frenum
Term
Deep Lingual Vessels
Definition
Blueish color under thin mucosa ventral of the tongue
Term
Plica Fimbriata (Fimbriated Fold)
Definition
Irregular, fringed fold of tissue on ventral surface of tongue

(**I have avery defined one!)
Term
Sublingual (Salivary Caruncle)
Definition
TWO fleshy prominences on either side of the lingual frenum

Midline of floor of mouth

Covers openings to both WHARTON'S DUCT and BARTHOLIN'S DUCT

*it squirts hehehe*
Term
Sublingual Fold (Plica Sublingularis)
Definition
Horizontal Raised boarder/band of tissue on with side of lingual frenum

Sites of Ducts of Rivinus

Opening of sublingual salivary gland
Term
Lingual Tonsils
Definition
Posterior to root of tongue (hard to see)
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