SALIVARY GLANDS

Question 1

Major salivary glands include:

Answer 1

• Parotid gland
• Submandibular gland
• Sublingual gland

Question 2

Minor salivary glands include:

Answer 2

•Small accessory salivary glands scattered over the

palate, lips, cheeks, tonsils, and tongue

Question 3

Saliva is secreted from the glands and functions in

the following manner

Answer 3

•Keeps moist the mucous membrane of the mouth
•Lubricates food during mastication
•Begins the digestion of starches
•Serves as an intrinsic mouth wash
•Plays significant roles in the prevention of tooth
decay

Question 4

parotid gland

Answer 4

•Largest of three paired salivary glands

•Enclosed within a tough unyielding fascial capsule, the parotid sheath derived from the investing
a layer of the deep cervical fascia

Question 5

parotid gland is •It is irregular in shape because the area occupied by the gland, the parotid bed is

Answer 5

s anteroinferior to
the external acoustic meatus, where it is wedged between the ramus of the mandible and the
mastoid process

Question 6

•Fatty tissue between the lobules of the gland confers the flexibility

Answer 6

the gland must have to

accommodate the motion of the mandible

Question 7

•The apex of the parotid gland is posterior to

Answer 7

r to the angle of the mandible and its base is related to the
zygomatic arch

Question 8

•The subcutaneous lateral surface of the parotid gland

Answer 8

is almost flat

Question 9

•Embedded within the substance of the parotid gland from superficial to deep:

Answer 9

• Parotid plexus of the facial nerve and its branches
• The retromandibular vein
• External carotid artery
• Parotid lymph nodes which are also present on the parotid sheath

Question 10

the parotid duct

Answer 10

•Passes horizontally from the anterior edge of the gland
•At the anterior border of the masseter, the duct turns medially, pierces the buccinator muscle and
enters the oral cavity through a small orifice opposite the second maxillary molar or teeth 17/27

Question 11

•The auriculotemporal nerve and the great auricular nerve, a branch of the cervical
plexus composed of fibers from C2 and C3 spinal nerves innervates the

Answer 11

e parotid

a sheath as well as the overlying skin

Question 12

The auriculotemporal nerve a branch of CNV3 is closely related to the

Answer 12

parotid gland

and passes posterior to it with the superficial temporal vessels

Question 13

•Stimulation of the parasympathetic fibers produce

Answer 13

a thin watery saliva

Question 14

•The vasomotor activity of these fibers may reduce secretion from

Answer 14

parotid gland
sensory
fibers pass to the gland through the great auricular and auriculotemporal nerves

Question 15

submandibular gland

Answer 15

•Lies along the body of the mandible, partly superior and partly inferior to the posterior
half of the mandible
•It is also partly superficial and partly deep to the mylohyoid muscle

Question 16

The submandibular duct approximately 5 cm in length arises from the portion of the
gland that lies between

Answer 16

n the mylohyoid and the hyoglossus muscles

Question 17

•The orifices of the submandibular ducts are visible and

Answer 17

saliva can often be seen

trickling from them

Question 18

•The arterial supply of the submandibular gland is from the

Answer 18

submental arteries and the veins accompany

the arteries

Question 19

•Lymphatic vessels of the glands end in the deep

Answer 19

p cervical lymph nodes, particularly the

jugulo-omohyoid node

Question 20

•Submandibular glands are supplied by presynaptic parasympathetic secretomotor fibers
conveyed from the facial nerve to the lingual nerve

Answer 20

via the chorda tympani nerve, which
synapse with postsynaptic neurons in the submandibular ganglion•The latter fibers accompany arteries to reach the gland, along with vasoconstrictive
postsynaptic sympathetic fibers from the deep cervical ganglion

Question 21

sublingual gland

Answer 21

•Are the smallest and most deeply situated salivary glands

Question 22

•Each almond shaped gland lies in the floor of the mouth between

Answer 22

n the mandible and the genioglossus

muscle

Question 23

•The glands from each side unite to form a

Answer 23

a horse-shoe shaped mass around the connective tissue core of
the lingual frenulum

Question 24

•Numerous small sublingual ducts open in the

Answer 24

e floor of the mouth along the sublingual folds

Question 25

•The arterial supply of the sublingual glands is from the

Answer 25

sublingual and submental arteries, branches of

the facial and lingual arteries respectively

Question 26

•The nerves of the glands accompany those of the

Answer 26

submandibular gland

Question 27

•Presynaptic parasympathetic secretomotor fiber are conveyed by the facial nerve (chorda tympani) and

Answer 27

the lingual nerves to synapse in the submandibular ganglion