Blood supply to face, Blood supply to oral cavity, blood supply to orodental tissues, venous drainage to oral cavity, lymphatic drainage of oral cavity.

1. VASCULATURE AND
LYMPHATIC DRAINAGE
OF THE ORAL CAVITY
Dr Saba Arshad
Senior Lecturer
Department of Oral Biology

2. Regions of the Face

3. Regions of the Oral CAvity

4. • Blood is supplied via following main
branches of the external carotid artery
1. Facial
2. Maxillary
3. Lingual
• Face is mainly supplied through facial
artery.
• Main arteries to the teeth and jaws
are derived from the maxillary artery.
Blood Supply to Orodental
Tissues

5. BRANCHES
OF
EXTERNAL
CAROTID
ARTERY

6. A = posterior auricular artery;
B = external carotid artery (ECA);
C = superficial temporal artery;
D = middle meningeal artery;
E = inferior alveolar artery (B of maxillary artery);
F = maxillary artery (B of ECA);
G = deep temporal artery;
H = posterior superior alveolar artery;
I = third part of maxillary artery entering the
pterygopalatine fossa;
J = facial artery;
K = inferior labial artery;
L = superior labial artery;
M = posterior belly of the digastric muscle;
N = hypoglossal nerve.

7. • Facial artery branches out
into superior and inferior
labial arteries.
1 cm lateral to the corner
of the mouth to supply
upper and lower lip resp.
Facial Artery

8. Cheeks and Facial Artery
• The angular artery, a terminal
branch of the facial artery,
supplies the superior part of
the cheek.

9. Branches of Maxillary Artery

10. 1. Posterior superior
alveolar artery,
2. The infraorbital
artery,
3. The artery of the
pterygoid canal,
4. The pharyngeal
branch,
5. The descending
palatine artery
6. The sphenopalatine
artery.
Branches of Maxillary Artery

12. MANDIBULAR BRANCH OF MAXILLARY ARTERY
The mandibular
branch of
maxillary artery
gives off the
inferior alveolar
artery, which
enters the
mandible and
supplies the
mandibular teeth,
chin, and
mylohyoid
muscle.

13. PTERYGOID BRANCHES OF MAXILLARY ARTERY
supplies the masseter
muscles and pterygoid
muscles of mastication.

14. BUCCAL BRANCHES OF MAXILLARY ARTERY
supplies the Buccinator
muscles of cheeks.

15. DEEP TEMPORAL BRANCHES OF MAXILLARY ARTERY
supplies the masseter
muscles of mastication.

16. • Posterior superior alveolar artery
supplies the maxillary molar and
premolars and the adjacent gingiva.
• The infraorbital artery supplies the
maxillary canines and incisors and the
skin of the infraorbital region of the
face.
• The descending palatine artery
descends through the palatine canal
and divides into the greater and lesser
palatine arteries to supply the mucosa
and glands of the hard and soft
palate.
• The sphenopalatine artery traverses
the sphenopalatine foramen to supply
the anterior most palate.

20. VENOUS DRAINAGE

21. FACIAL VEIN
• The facial vein provides
venous drainage to the lips.
It joins with retromandibular
vein to form the common
facial vein and terminates in
the internal jugular vein at
the level of the hyoid bone. Common
facial
vein

22. • The deep facial vein originates from the pterygoid venous plexus, drains
most of the areas supplied by the maxillary artery. It enters the posterior
aspect of the facial vein, which terminates in the internal jugular vein.

23. • The lingual artery, its branches,
and the lingual veins provide
circulation to the tongue and
the floor of the mouth. All of the
lingual veins terminate, directly
or indirectly, in the internal
jugular vein after merging into
the common trunk for lingual
and facial veins.

24. Lymphatic
drainage

25. LYMPHATIC DRAINAGE

26. • All lymphatics from the head and neck drain directly or indirectly into the
deep cervical lymph nodes. Lymph from these nodes then drains into the
jugular lymphatic trunk, which joins the thoracic duct on the left side and the
internal jugular vein or brachiocephalic vein on the right side.

28. Skin of
cheeks,

29. Skin, of cheeks, upper lip,
mucous membrane of cheeks
Central
part of
lower lip
Lymph from the
mucous membrane
of the cheek drains
to submandibular
nodes and to upper
deep cervical nodes.
Superficial cervical
nodes may also be
involved.

30. • Both surfaces of the lower gingivae and the outer surface of the upper gingivae
drain into submandibular lymph nodes.
• The inner surface of the upper gingiva is drained with the vessels of the hard
and soft palates to the upper deep cervical lymph nodes.
• The floor of the mouth drains via lymphatics that pierce the mylohyoid muscle
to reach the submental nodes anteriorly or the submandibular nodes
posteriorly.
• Lymphatics from the anterior two-thirds of the tongue may be subdivided into
two groups:
• marginal and central vessels.
• The marginal lymphatic vessels drain the lateral third of the dorsum of the
tongue and the lateral margin of its ventral surface. The remaining regions drain
into the central vessels.
• The marginal vessels pass to the submandibular lymph nodes of the same side.
• The central vessels at the tip of the tongue pass to the submental lymph nodes.

32. Fig. 4.4 Schematic diagram
showing cutaneous
innervation of the face.
A = supra-orbital nerve;
B = supratrochlear nerve;
C = infratrochlear nerve;
D = external nasal nerve;
E = lacrimal nerve;
F = zygomaticotemporal nerve;
G = zygomaticofacial nerve;
H = infra-orbital nerve;
I = auriculotemporal nerve;
J = buccal nerve;
K = mental nerve;
L = great auricular nerve.

33. THANK
YOU