問題一覧
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important from the basic function of mastication, to initial diagnosis of systemic diseases, it’s an indicator of your general health.
Oral Cavity
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Structures that overall comprise the Oral Cavity
Lips, Teeth, Gums/Periodontium, Tongue, Palate, Muscle Folds, Salivary Glands, Floor of the mouth, Jaw joint or Temporo Mandibular Joint
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Oral Cavity consists of Three Basic Structures
Oral Mucosa, Muscles, Bones
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mucous membrane that covers the entire oral cavity except the teeth. Pink to brownish purple.
Oral Mucosa
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facilitate the movements in the oral cavity. Lips, cheeks and the tongue, all contain muscles.
Muscles
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upper jaw (Maxilla) and the lower jaw (Mandible) are the bony components of the oral cavity.
Bones
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serving as an upper seal to the digestive tract. Covered with skin on the outside and mucosa on the inner side, gateway to the oral cavity.
Lips
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Function of the Lips.
involve food and water intake as well as articulation of speech.
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muscle that supports the external mouth.
Orbicularis Oris Muscle
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Functions of Mouth:
The first part of digestive system wherein mastication occur., It receives food (ingestion) and break up the food into smaller pieces (digestion), Takes part in respiration, Speech production, It conveys emotion
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2 Divisions of the Oral Cavity
Oral Vestibule, Oral Cavity Proper
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anterior part of the palate, consisting of the bony plate covered above by the mucous membrane of the nose.
Hard Palate
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the roof of the mouth.
Mucoperiosteum
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made up of muscular tissue that is covered by epithelial tissue.
Soft Palate
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projection tissue.
Uvula
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Function of the Soft palate
to keep food from straying down the breathing passage or the windpipe during swallowing
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two clumps of tissue, on either side of the throat.
Tonsils
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highly mobile, flexible, muscular structure attached to the floor of oral cavity.
Tongue
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Two Surfaces of the Tongue
Ventral Surface, Dorsal Surface
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Thin sheet of tissue at the midline that attaches the undersurface of the tongue.
Lingual Frenum
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undersurface of the tongue; is shiny and blood vessels are visible
Ventral Surface of the Tongue
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A muscular structure in the oral cavity.
Dorsal Surface of the Tongue
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Parts of the Dorsal Surface of the Tongue
Body/Oral Portion, Root/Pharyngeal Portion
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V-shaped groove.
Sulcus Terminalis
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initial developmental site of the thyroid gland.
Foramen Cecum
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divides tongue into halves.
Median Sulcus
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large nodules of lymphatic origin.
Lingual Tonsils
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mucous membranes.
Glossoepiglottic Folds
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upper surface of the tongue is covered with tiny projections. Our taste buds are located here.
Lingual Papillae
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Four types of Papillae:
Circumvallate Papillae, Foliate Papillae, Fungiform Papillae, Filiform Papillae
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Goblet-shaped clusters of cells.
Taste Buds
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Muscles of the Tongue:
Extrinsic Muscles, Intrinsic Muscles
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to change the size or mass of the tongue.
Extrinsic Muscles
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to change the shape or form of the tongue.
Intrinsic Muscles
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located between the oral cavity and the throat.
Faucial Pillars
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3 Parts of The Salivary Glands:
Parotid Gland, Submaxillary or Submandibular Gland, Sublingual Gland
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the largest of the 3 salivary gland.
Parotid Gland
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located at the floor of the mouth posteriorly. Mixed serous and mucous secreting gland.
Submaxillary or Submandibular Gland
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located at the floor of the mouth anteriorly. Primarily a mucous secreting gland.
Sublingual Gland
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are the duct of SL gland opens at the sublingual fold.
Bartolins and Ravinis
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opens at the sublingual caruncle.
Whartons’ Duct
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produced in and secreted from salivary glands.
Saliva
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basic secretory units of salivary glands.
Acini
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Functions of Saliva Include:
Lubrication and Binding, Solubilises dry food, Oral Hygiene, Flow of saliva diminishes considerably, allow populations of bacteria to build up, Saliva also contains lysozyme