Parotid Gland and the Infratemporal Fossa

Question 0

Three major salivary glands

Answer 0

Parotid, submandibular, sublingual

Question 1

Amount of saliva produced in an hour

Answer 1

1.5 to 2 liters

Question 2

Produces serous secretion, 1/3 of saliva when in resting state

Answer 2

Parotid Gland

Question 3

Medial to the mandible, mixed serous and mucous secretion, produces 2/3 of saliva when in resting state

Answer 3

Submandibular Gland

Question 4

Under the tongue, secretes mucous secretion

Answer 4

Sublingual Gland

Question 5

Salivary response is dependent upon ___.

Answer 5

Parasympathetic nervous system: glossopharyngeal nerve –> lesser petrosal nerve –> auriculotemporal nerve

Question 6

Nerve that branches into the parotid gland

Answer 6

Facial nerve

Question 7

80% of the parotid gland is found in between which two structures?

Answer 7

Sternocleidomastoid and mandible

Question 8

Most benign tumors occur at the ___.

Answer 8

Superficial lobe of the parotid gland

Anterior to the masseter and extends anteriorly along parotid duct

Question 9

20% of the parotid gland passes through the ___.

Answer 9

Stylomandibular tunnel

Question 10

Borders of the stylomandibular tunnel

Answer 10

Ventral: posterior edge of mandible ramus
Dorsal: anterior borders the SCM, posterior digastric muscle
Medially: stylomandibular ligament

Question 11

Contents of the pharyngeal space

Answer 11

Internal carotid artery,
internal jugular vein,
cranial nerves 9, 10, 11, 12

Question 12

Ducts of the parotid and submandibular gland

Answer 12

Parotid: Stensen’s duct
Submandibular: Bartholin’s duct

Question 13

Structures inside the parotid gland

Answer 13

Facial nerve, retromandibular vein, external carotid artery (lateral to medial)

Question 14

Branches of facial nerve after thestylomastoid foramen

Answer 14

Posterior auricular, posterior belly of digastrics, stylohyoid