Oral Cavity & The Tongue (Anatomy of the Neck)

Oral Cavity & The Tongue

1. Oral (Mouth) Cavity
(Page 102)
Dr. Sherif Fahmy

2. Parts of Oral Cavity
1- Vestibule: between lips and teeth.
2- Mouth cavity proper: Inner to teeth.
Dr. Sherif Fahmy

3. Vestibule
Mouth cavity
proper
Dr. Sherif Fahmy

4. Boundaries of Mouth Cavity
Proper
1- Infront & sides: Teeth
2- Roof: Palate (hard & soft)
3- Floor:
A- Upper surface of anterior 2/3 of tongue.
B- Lower surface of tongue.
C- Below tongue.
D- Myelohyoid muscle and its relations.
Dr. Sherif Fahmy

5. Vestibule
Frenulum of tongue
Deep
lingual
vein
Pilca fimberiata
Dr. Sherif Fahmy

6. Anterior belly of
digastric m.
Myelohyoid
m.
myelohyoid
nerve
Submental
artery
Beginning of
anterior jugular vein
Superficial
Dr. Sherif Fahmy

7. Geniohyoid
m.
Hyoglossus m.
Genio-glossus m.
Stylo-glossus m.
Lingual nerve
Hypoglossal nerve
Deep part of submandibular
gland
Submandibular duct
Myelohyoid m. (cut)
Deep
Dr. Sherif Fahmy

8. TONGUE
(Page 106)
Dr. Sherif Fahmy

9. External Features
Dr. Sherif Fahmy

10. Oral part
Pharyngeal
part
Upper Surface
Dr. Sherif Fahmy

11. Sulcus terminalis
Foramen cecum
Lingual
tonsil
Circumvallate
papillae
Filiform papillae
Fungiform papillae
Dr. Sherif Fahmy

12. Frenulum of tongue
Deep
lingual
vein
Plica fimberiata
Sublingual fold
Sublingual papilla
Dr. Sherif Fahmy

13. Frenulum
of tongue
Sublingual fold
Sublingual papilla receiving opening of submandibular duct
Dr. Sherif Fahmy

14. Muscles of the Tongue
Intrinsic
1- Transverse.
2- Vertical
3- Superior
longitudinal.
4- Inferior
longitudinal
Extrinsic
1- Styloglossus
2- Hyoglossus.
3- Genioglossus.
4- Palato-glossus.
Dr. Sherif Fahmy

15. A- Extrinsic Muscles
Dr. Sherif Fahmy

16. Palato-
glossus m.
Stylo-glossus
m.
Hyo-glossus m.
Genio-glossus m.
Dr. Sherif Fahmy

17. B- Intrinsic Muscles
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18. Vertical muscle
Transverse muscle
Superior longitudinal m.
Inferior longitudinal m.
Intrinsic muscles
T.S
L.S.
Dr. Sherif Fahmy

19. Blood Supply of
Tongue
Dr. Sherif Fahmy

20. Arterial Supply
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21. Ext. carotid art.
Lingual art.
Dorsal lingual arteries
Deep artery
of tongue
Dr. Sherif Fahmy

22. Venous Drainage
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23. Deep lingual vein
Dorsal lingual veins
Hypoglossal nerve
Common lingual
vein
Dr. Sherif Fahmy

24. Lymph Drainage
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25. Submental nodes
Submandibular
nodes
Jugulo-
digastric
nodes
Jugulo-omohyoid
nodes
Dr. Sherif Fahmy

26. Submental
nodes
Submandibular
nodes
Jugulo-digastric node
Jugulo-omohyoid node
Post. Belly
of digastric
m.
I.J.V
Omo-hyoid
m.
Dr. Sherif Fahmy

27. Nerve Supply
•Motor: Hypoglossal nerve except
palato-glossus muscle.
•Sensory:
Anterior 2/3: lingual & Chorda tympani.
Posterior 1/3: Glossopharyngeal nerve
Dr. Sherif Fahmy