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Landmarks of the Face and Oral Cavity

Landmarks of the Face and Oral Cavity. Landmarks of the Face. Nostril Openings to the nasal cavity Lined w/ mucosa Cilia Nasal hair Ala of the Nose Wing of the nose outer edge of nostril. Landmarks of the Face. Philtrum. Philtrum V-shaped depression Below the nose

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Landmarks of the Face and Oral Cavity

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  1. Landmarks of the Face and Oral Cavity

  2. Landmarks of the Face • Nostril • Openings to the nasal cavity • Lined w/ mucosa • Cilia • Nasal hair • Ala of the Nose • Wing of the nose • outer edge of nostril

  3. Landmarks of the Face Philtrum • Philtrum • V-shaped depression • Below the nose • Above the upper lip. • Midline • Labial Comissures • corners of mouth • Herpetic lesions • often found here Labial Commissure Labio-mental groove

  4. Lips Covered w/ skin on outside, mucosa inside Vermillion Zone reddish portion Lip stick goes here Vermillion Boarder Edge of the lips Lip liner goes here Labial Tubercle Tip of the upper lip Protrusive tissue Lips

  5. Lobule aka ‘lobe’ Fatty tissue that hangs down. Helix Outer edge of the ear Tragus Cartilage Covers ear canal opening Ala-tragus plane Ears

  6. Facial Grooves • Naso-labial groove • AKA sulcus • Groove from • ala of the nose to • corners of mouth • Labio-mental groove • Groove between the • lip and chin

  7. Oral Vestibule aka Labial vestibule Buccal vestibule Pocket inside mouth where cheek meets gingiva Located on Max. and Man. ‘Chew’ is placed here Vestibular Fornix Deepest part of the vestibule Landmarks of the Oral Cavity

  8. Mucosa Tissue that lines inner surface of lips & cheeks Labial mucosa-lines the lips Fordyce’s spots found in labial mucosa (small yellowish glands) Buccal mucosa-lines the cheeks Stensen’s duct is located on buccal mucosa Labial mucosa Buccal mucosa Oral mucosa

  9. Gingiva AKA gums Firmly attached Dense, fibrous tissue withstands chewing pressure Pink Stippled Landmarks of the Oral Cavity

  10. Frena Frenum(singular) Raised lines of mucosal tissue Extends from vestibule to labial & buccal mucosa Attaches tongue to floor of the mouth Frena / Frenum

  11. Landmarks of the Oral Cavity • Palate • AKA roof of the mouth • 2 sections: Hard & Soft Palate • Hard Palate-Anterior portion • Palatine rugae • Ridges on roof of mouth • Palatine raphe • Seam down center of palate • Soft Palate-Posterior portion • Uvula is projection – extends off back of soft palate

  12. Bony growth Projects from a bony surface. Anywhere in the body Torus - singular Tori - plural Bony growth Oral cavity Torus palantinus Aka palatal tori Exostosis

  13. Torus Mandibularis (excess bone under tongue, AKA tori) Uni-lateral One side Bi-lateral Both sides Buccal Towards the cheek Mandibular Tori

  14. Tongue Glossus muscle Glossitis Inflammation of the tongue Papilla (taste buds) on dorsal side Filiform papillae (hair like projections) Fungiform papillae (strawberry effect) Median sulcus divides tongue in half Landmarks of the Oral Cavity

  15. Secrete saliva aid in digestion process Three Pairs of Salivary Glands Parotid Largest Secretes saliva via the Stensen’s duct Located by #2 & 15 Salivary Glands

  16. Salivary Glands • Sub-Mandibular • Size of walnut • Secretes saliva via the Wharton’s duct • Located in area of #24 & 25 • Sub-Lingual • Smallest gland • Secretes saliva from under the tongue • Many ducts • Like a ‘soaker’ hose

  17. Saliva • 5 major functions of Saliva • Aids in digestion • Enzyme (salivary amylase) • Helps swallowing • Lubrication • Provides moisture to mouth (washes off teeth) • Provides fluoride to teeth • Breaks down carbohydrates

  18. Conclusion • Knowing and understanding landmarks of the oral cavity is very important. • Understanding word parts will make it easier to learn landmarks. • Materials, techniques and instructions will be related to landmarks. • Any questions??

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