Salivary Glands

Question 1

largest salivary gland

Answer 1

parotid gland, composed mainly of serous acini

Question 2

which nerve divides the parotid gland?

Answer 2

The facial nerve divides the gland into superficial and deep lobes.

Question 3

location of parotid gland

Answer 3

It lies in a deep hollow below the external auditory meatus, behind the ramus of the
mandible, and in front of the sternocleidomastoid muscle.

Question 4

where does the parotid duct enter?

Answer 4

It enters the vestibule of the mouth upon a small papilla opposite the upper second molar tooth

Question 5

malignant tumor of the parotid

Answer 5

causes unilateral facial paralysis

Question 6

benign parotid neoplasm

Answer 6

causes facial palsy

Question 7

which structure is responsible for for the pain experienced in acute parotitis when eating?

Answer 7

The swollen glenoid process, which extends medially behind the temporomandibular joint

Question 8

Frey’s Syndrome

Answer 8

• a complication that develops after penetrating wounds of the parotid gland.
• manifestations: When the patient eats, beads of perspiration appear on the skin covering the parotid
• cause behind this manifestation: During the process of healing, the parasympathetic secretomotor fibers in the auriculotemporal nerve grow out and join the distal end of the great auricular nerve. Eventually, these fibers reach the sweat glands in the facial skin. By this means, a stimulus intended for saliva production produces sweat secretion instead.
• nerves damaged: auriculotemporal and great auricular nerves

Question 9

submandibular gland

Answer 9

• a mixture of serous and mucous acini
• It lies beneath the lower border of the body of the mandible, and is divided into superficial and deep parts by the mylohyoid muscle

Question 10

submandibular duct opens into

Answer 10

the mouth on a small papilla, which is situated at the side of the frenulum of the tongue

Question 11

nerve supply of submandibular gland

Answer 11

Parasympathetic secretomotor supply is from

• the facial nerve via the chorda tympani
• the submandibular ganglion

Question 12

which gland is a common site of calculus formation?

Answer 12

submandibular gland

-The presence of a tense swelling below the body of the mandible, which is greatest before or during a meal and is reduced in size or absent between meals, is diagnostic of the condition, Examination of the floor of the mouth will reveal absence of ejection of saliva from the orifice of the duct of the affected gland. Frequently, the stone can be palpated in the duct, which lies below the mucous membrane of the floor of the mouth.

Question 13

Sublingual Gland

Answer 13

• It has both serous and mucous acini, with the latter predominating
• lies beneath the mucous membrane (sublingual fold) of the floor of the mouth, close to the frenulum of the tongue

Question 14

sublingual ducts

Answer 14

• 8 to 20 in number

- open into the mouth on the summit of the sublingual fold

Question 15

nerve supply of sublingual gland

Answer 15

Parasympathetic secretomotor supply is from

• the facial nerve via the chorda tympani
• the submandibular ganglion

Question 16

cause of cyst under tongue

Answer 16

blockage of one of the sublingual gland ducts