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Dent anatomy mod2

structures of the oral cavity

the area of the face bounded by the lips (anterior), the cheeks (lateral), the palate (superior) and the floor of the mouth (inferior). Oral Cavity:
a well defined area bounded by the teeth (anterior and lateral) and the palatine tonsil (posterior). Oral Cavity Proper
There are 3 interrelated systems of the oral cavity which include: 1. Intraoral Functions 2. Soft Palate Functions 3. Teeth Function
4 intraoral functions 1.Phonetics (speech) 2. Mastication (chewing) 3. Respiration (breathing) 4. Digestion (breakdown/utilization of food)
2 soft palate functions 1.Swallowing (prevents regurgitation of food into the nasal passage) 2. Blowing (sound production
4 functions of teeth Aesthetics (pleasing look to face) Phonetics (speech) Mastication (chewing/grinding) Protection of supporting tissue (form and shape of face)
2 fleshy borders of the mouth, upper and lower. Tend to be redder in younger people. May be pigmented. Lips
line of demarcation separating lip mucosa from face. vermilion border
small rounded nodule of tissue centered in the lowest part of the upper lip. Tubercle
depression running from the tubercle to the nose Philtrum
groove or fold that runs diagonally from each side of nose to corner of lip. Nasolabial groove
horizontal groove below the lower lip which emphasizes the chin. Labiomental Groove
corner of mouth where upper lip meets lower lip. Commissure
Wet Line junction or division between inner mucosa (more smooth & moist) and outer lip tissue (more rough and dry).
grayish red to coral pink color. Tissue is attached to maxillae and palatine bone. Hard Palate
line that separates hard palate from soft palate, opposite 3rd molars. Vibrating line
elevated mound of tissue, posterior to and centered between the max. centrals. Covers the incisive foramen. Incisive Papillae
ruffled attached tissue covering the palate, posterior to max. anterior teeth. Palatine Ruggae
union of the right and left maxillae. It is a line or depression of tissue running antero-posteriorly in the hard palate Palatine Raphae
bulging area of tissue/bone posterior to max. 3rd molars Maxillary Tuberosity
structure (fold of tissue) that hangs from the center of the posterior border of the soft palate. Uvula
pair of pits located bilaterally to the median but posterior to the vibrating line. They are duct openings from minor palatine mucous glands. Fovea Palatini
Redder in color than the hard palate due to increased vascularity. This tissue is not attached to bone. Soft Palate
term refers to the space between the lips or cheeks and the teeth. Vestibule
refers to the posterior portion (premolar/molar region) of the vestibule. Buccal vestibule
refers to the anterior portion (incisor/canine region) of the vestibule. Labial Vestibule
thin tough fold of tissue that attaches the lips and cheeks to the maxilla and mandible in the vestibular area. Frenum
located between the upper and lower centrals. The upper frenum is usually more pronounced than the lower and is so firm that it can cause erupting centrals to be pushed aside causing a diastema (space). Labial Frenum
multiple upper and lower frena attach cheeks to alveolar mucosa, located posterior to the canines. Buccal Frenum
rounded, elevation of tissue adjacent to 1st/2nd/ molars, occurs bilaterally. Parotid Papilla
The parotid papilla tissue covers the openings to ? Stenson’s duct.
Term/s for ectopic sebaceous (sweat) glands. Generally seen on the buccal and labial mucosa. Appear as small, yellowish spots occurring in irregular and random patterns. Fordyce Spots or Granules
An area located posterior to the soft palate that leads to the esophagus. the most posterior part of the oral cavity proper Oropharynx
area of tissue located bilaterally posterior to the last tooth on the mandible Retromolar pad/retromandibular pad
Curtain or fold of tissue connecting the mandible to the maxilla. Found bilaterally when mouth is opened wide. Fold extends from retromandibular pad to maxillary tuberosity. Ptergomandibular Fold/Raphe
A space or opening between the right and left palatine tonsils and the anterior and posterior pillars. (behind the uvula Oropharynx Fauces
Refers to the ENTIRE curtain or fold of tissue that separates the mouth from the pharynx and esophagus. a zone of mucous tissue that is located btwn the anterior pillars and the pterygomandibular fold. uvula hangs from the middle of this curtain. Retromylohyoid Curtain
Broad, flat organ made of muscle fibers and glands. Strongest muscle in the body that rests on the floor of the mouth.Principle organ of taste. Aids in speech, mastication and deglutition (swallowing). Tongue
top surface of the tongue Gray-red in color rough surface Dorsum of the tongue
How many types of papillae are on the dorsum of the tongue ? 4 types
type of papillae that covers the ant. 2/3’s of tongue; abundant, fine & hair-like; rarely have taste buds. Filiform papillae
type of papillae that is deeper red in color, larger, more sparse, scattered, shorter, round mushroom shape; senses sweet, salty & sour taste. Fungiform papillae
type of papillae that is large, red leaf-like projections; located on the lateral surface of the tongue; sense sour taste. Foliate papillae
8-12 large papillae, flat mushroom shape; form V-shape row at posterior of tongue; sense bitter taste. Circumvallate papillae
4 types of papillae on the tongue Filiform, Fungiform, Circumvallate, and Foliate
small circular opening posterior to the V-shape of the circumvallate papillae. Remains of the thyroglossal duct from which the thyroid gland was formed. Foramen Cecum
Underside of the tongue Reddish to bluish-purple in color Very vascular Ventral surface of the tongue
Tough band of tissue that anchors tongue to floor of mouth. Theres ONLY one of these Lingual Frenum
refers to a more anterior attachment of the frenum to the tip of the tongue thereby limiting the range of independent movement. Tongue Tied
fold that occurs at the junction of the broad ventral sides of the tongue and its attachment to the floor. Duct openings from ______glands occur along fold. Sublingual folds AKA plica sublingualis, Sublingual glands
Bilateral elevations of tissue located on either side of the anterior medial point or base of lingual frenum. Duct openings from the ______ gland sits on top pf each of these elevations. Sublingual Caruncles, submandibular
Two radiating, opposing diagonal ducts that deliver saliva from the submandibular glands to the duct openings or caruncles. Two radiating, opposing diagonal ducts that deliver saliva from the submandibular glands to the duct openings or caruncles.
An average person will secrete over a______ of saliva in 24 hours pint (<2 cups)
are the largest salivary glands producing 2/3’s of the daily saliva, mostly in the form of serous or watery type. Submandibular glands
produce less than 10% of daily saliva in the form of a thick, ropy type of mucous Sublingual glands
secretes through the Stenson’s duct the remaining daily supply of saliva. The parotid
Created by: osabdelr