The document describes the three major salivary glands - the parotid gland, the submandibular gland, and the sublingual gland. It provides details on the location, composition, duct system, and some clinical considerations for each gland. Additionally, it mentions there are many smaller accessory salivary glands throughout the oral cavity that produce mucus.

1. T he Salivar y
Glands and
Accessor y
Glands of the
Or al Cavity

2. The Salivary Glands of
the
Oral Cavity
1. Parotid Gland
2. Submandibular Gland
3. Sublingual Gland

3. T he Parotid
Gland

4. The Parotid Gland
The parotid gland is one of the three major
salivary glands that produce and secrete
saliva for the oral cavity.
weight : about 14 to 28 g.
color : yellowish in the
fresh state
composition : serous secreting
units

5. Location and Relations
of the Parotid Gland
A. Anterior surface: lies against the posterior
border of the ramus of the mandible
B. Posterior surface: on the external auditory
meatus and sternocleidomastoid muscle
C. Superficial surface: lobulated, covered by
skin, fascia, lymph nodes, and facial
branches of the great auricular nerve.
D. Deep surface: styloid process and its
muscles as well as under the mastoid and
sternocleidomastoid muscles.

7. The Parotid Duct
From the rostral border of the gland,
crosses masseter muscle, turns inward
to pierce the fat pad of the cheek and
then the buccinator muscle, to open into
the mouth opposite the second maxillary
molar. Approximately 5 cm. long.

10. Clinical Considerations
1. A viral inflammation of the parotid gland
(mumps) causes it to swell, resulting to
pain on movement of the jaw.
2. Abcesses or cysts of the gland may
result in pressure to the facial nerve
3. Stones or calculi in the duct can block
it, causing painful swelling of the gland.

11. T he
Submandibular
Gland

12. The Submandibular
Gland
Type:
It is a mixed serous and mucous secreting
gland.
Location:
It is found partly in the submandibular
fossa below the mylohyoid muscle and
partly in the floor of the mouth.

13. The Submandibular
Gland
Duct:
The submandibular duct (Wharton’s) arises from
the medial surface of the gland and
accompanies it under the mlohyoid muscle; it
passes diagonally across the medial aspect of
the sublingual gland and adheres to it. It
opens at the sublingual papillae beside the
base of the lingual frenulum.

14. The Submandibular
Gland

15. The Submandibular
Gland

16. T he Sublingual
Gland

17. The Sublingual Gland
The smallest of the three major salivary
glands and rests upon the mylohyoid
muscle in the sublingual fossa close to
the symphysis. It is primarily a mucous
secreting gland.

18. The Sublingual Gland
Location:
The gland, indicated by the subligual fold is
found between the alveolus and the anterior
part of the tongue.
Duct:
The gland has many lesser sublingual ducts
(Rivini’s) that opens separately at the floor of
the mouth and a greater sublingual duct
(Bartholin’s) that opens on the sublingual
caruncle.

19. The Sublingual Gland

20. T he Accessor y
Glands

21. The Accessory Glands
Beside the main salivary glands, many
others exists: some in the tongue, others
around and in the palatine tonsil between
its crypts, with the large number in the
soft palate, the posterior part of the hard
palate, the lips and the cheeks. These
are similar in structure to larger salivary
glands and are mainly mucous type.

22. The Accessory Glands