Parotid and associated structures

Question 1

T/F:

Intrinsic salivary glands are outside the oral cavity and drain into the cavity via ducts

Answer 1

False

this describes EXTRINSIC salivary glands

Question 2

Where can you find intrinsic salivary glands?

Answer 2

Within the oral mucosa

Question 3

What are the three extrinsic salivary glands?

Answer 3

Parotid, submandibular, sublingual

All paired

Question 4

How is the parotid gland related to the ramus of the mandible and masseter?

Answer 4

It is lateral to the ramus of the mandible and masseter

Question 5

T/F:

The parotid lies between the zygomatic bone and SCM

Answer 5

False

lies between the mandible and SCM

Question 6

T/F:

Internal jugular, internal carotid and vagus are medial and separated from the parotid by styloid muscles

Answer 6

True

Question 7

List the four landmarks where the parotid capsule is attached

Answer 7

Zygomatic arch
Mandible
Styloid Process
Tympanic plate

Question 8

T/F:

The deep part of the capsule is attached to the tympanic plate

Answer 8

False
Deep part is attached to the styloid process
The superficial part is attached to the zygomatic arch, mandible, styloid process, tympanic plate

Question 9

Explain how the stylomandibular ligament is formed

Answer 9

The part of the parotid capsule which is attached to the styloid process and the angle of the mandible

Question 10

What is the tympanic plate?

Answer 10

Bone around the external acoustic meatus

Question 11

T/F:

The parotid has a thick fibromuscular wall lined with cuboidal epithelium

Answer 11

False

Columnar epithelium

Question 12

Explain how the course of the parotid duct

Answer 12

Leaves the anterior side of the parotid gland
travels superficially to masseter
pierces buccinator
empties into the vestibule of the mouth

Question 13

T/F:

Parotid gets parasympathetic innervation from trigeminal

Answer 13

False

From glossopharyngeal hitchiking on auriculotemporal nerve

Question 14

What supplies parotid with sympathetic innervation?

Answer 14

External carotid plexus

Question 15

T/F:

The auriculotemporal nerves supply the superficial and inferior parts of the gland with sensory innervation

Answer 15

False

they supply the deep and superior parts of the gland with sensory innervation

Question 16

What supplies the superficial and inferior parts of the parotid gland with sensory innervation? Where does this nerve come from?

Answer 16

Greater auricular nerve

Branch of the cervical plexus

Question 17

List the three arteries that supply the parotid

Answer 17

Posterior auricular artery
Superficial temporal artery
Transverse facial artery

Question 18

Which vein drains the parotid?

Answer 18

Retromandibular vein

Question 19

T/F:

Within the parotid, the retromandibular vein is deep to the external carotid

Answer 19

False

External carotid is deep to the retromandibular vein

Question 20

T/F:

Within the parotid, the facial nerve is more superficial than the retromandibular vein

Answer 20

True

Question 21

Which surface of the parotid does the external carotid artery enter?

Answer 21

Posteromedial surface

Question 22

Describe what happens to the external carotid within the parotid gland

Answer 22

Enters posteromedially
Divides into maxillary and superficial temporal arteries
Superficial temporal artery gives off the transverse facial artery before it exits from the superior surface

Question 23

T/F:

Posteriorauricular artery may also arise within the parotid

Answer 23

True

Question 24

What two veins come together within the parotid to form the retromandibular vein

Answer 24

Superficial temporal and maxillary vein

Question 25

T/F:

Retromandibular vein doesn’t branch within the parotid

Answer 25

False

It branches into anterior and posterior branches

Question 26

What does the facial nerve divide into within the parotid?

Answer 26

The 5 cutaneous branches at ‘pes anserinus’