1. Walls and parts of the oral cavity. The oral mucosa.
Dr. Altdorfer

2. Leukoplakia (Precancerous stage!!!)

3. Parts of the oral cavity
Vestibule of oral cavity
Oral cavity proper

4. Parts of the oral cavity
1.Vestibule of the oral cavity
Borders:
- lips and cheek (bucca)
- dental arches
2.Oral cavity proper
Borders:
- roof: hard and soft palate
- floor: oral diaphragm (mylohoid m.)
- antero-laterally: dental arches
- posteriorly: isthmus of the fauces

5. Entrance and exit of the oral cavity
Philtrum
Upper & lower lip
Angulus
Rubor labii
Nasolabial groove
(Facial palsy)

7. Pharyngitis
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8. roof: hard and soft palate

9. Structure of the hard and soft palate
mucous membrane
palatine glands
bone / muscles
Rugae palatinae

10. Blood supply and innervation of the hard and soft palate
- greater and lesser palatine nerves
(maxillary nerve)
- nasopalatine nerve
greater and lesser palatine arteries

12. Mucous membrane of the oral cavity:
1. lining mucosa (mobile; ventral side of tongue, mucosa of cheeks, lips, floor of mouth, soft palate),
2. masticatory mucosa (immobile; gingiva, hard palate - Mukoperiosteum) and
3. specialized mucosa (dorsum of tongue: papillae).
oral epithelium: keratinized or non-keratinized stratified squamous epithelium
lamina propria
+minor salivary glands

13. Histology of the soft palate
NASAL SURFACE
- Pseudostratified columnar ciliated epith.
lamina propria
mucous glands
striated muscle
ORAL SURFACE
- stratified squamous non keratinized epithelium

14. Histology of the hard palate
Mucoperiosteum

15. Sulcus terminalis Foramen cecum Dorsum linguae Pars papillaris
Radix linguae
Pars follicularis
Dorsum linguae
Pars papillaris
Apex linguae

16. (Circum)vallate papilla
Taste buds

17. SUBLINGUAL REGION FEATURES OF THE FLOOR - frenulum of tongue
- ridge formed by deep lingual vein
- sublingual fold
- sublingual caruncle (papilla)
opening of submandibular and
main sublingual duct

19. floor: ORAL DIAPHRAGM MYLOHYOID M.

20. Floor of mouth Suprahyoid muscles: Digastric Stylohyoid Mylohyoid
Geniohyoid

22. LATERAL LINGUAL SULCUS
Borders:
medial: Hyoglossus m.
lateral: Mylohyoid m.
sup.: Oral mucosa
Contents:
Lingual n. (from CN V/3)
Submandibular duct (Wharton)
Hypoglossal n. (CN XII.)
(and: sublingual v., sublingual gland)
MEDIAL LINGUAL SULCUS
Borders:
medial: Genioglossus + Geniohyoideus m lateral: Hyoglossus m.
Content: Lingual artery!
glossopharyngeal n. (CN IX.) HG MH GG GH

23. MEDIAL + LATERAL LINGUAL GROOVES
Hyoglossus m.
Genioglossus
Mylohyoid m.
Lingual a.
Submandibular gland
Hypoglossal n.

26. CT 1. M. mentalis 2. M. depressor angulis oris 3. Mandibula
4. M. mylohyoideus
5. V. sublingualis, Sulcus lateralis linguae
6. M. genioglossus
7. M. hyoglossus
8. Gl. submandibularis
9. V. facialis
10. A. carotis ext.
11. Oropharynx
12. A. facialis
13. V. facialis communis
14. Platysma
15. V. jugularis int.
16. M. stylohyoideus
17. A. carotis int.
18. Mm. longi capitis et colli
19. M. sternocleidomast.
20. V. jugularis ext.
21. M. levator scapulae
22. A. cervic. prof.
23. M. semispin. cerv.
24. M. semispin. capit.
25. M. splenius capitis
26. M. trapezius

27. CT 19. A. vertebralis 20. Spatium retropharyngeum
Csillag A, Anatomy of the Living Human, Könemann, Cologne, 1999 CT
19. A. vertebralis
20. Spatium retropharyngeum
21. Mm. longi capitis et colli
22. M. scalenus post.
23. M. levator scapulae
24. M. splenius capitis
25. M. trapezius
26. Mm. longissimi et semispin. capit.
27. M. semispinalis cervicis
28. Lig. nuchae
1. Mandibula
2. M. mylohyoideus
3. M. hyoglossus
4. M. genioglossus
5. A. lingualis
6. Gl. submandibularis
7. Platysma
8. V. facialis
9. A. carotis ext.
10. Oropharynx
11. Os hyoideum
12. Cart. thyroidea, cornu sup.
13. A. carotis int.
14. V. jugularis int.
15. M. sternocleidomastoideus
16. V. jugularis ext.
17. M. scalenus ant.
18. M. scalenus medius