Parotid Gland Facial Nerve

Question 1

What is the largest salivary gland?

Answer 1

Parotid gland

Question 2

The parotid gland is enclosed within a tough _____ ____ (the _____ ____), derived from the _____ layer of deep cervical fascia

Answer 2

Facial capsule

Parotid sheath

Investing

Question 3

The parotid gland is wedged where?

Answer 3

Between the ramus of the mandible and the mastoid process

Question 4

Where does the parotid duct pass?

Answer 4

Horizontally from the anterior edge of the gland, at anterior border of masseter

It turns medially, penetrates the buccinators muscle and enters the oral cavity where it opens opposite to the upper second molar tooth

Question 5

Three important structures embedded within the parotid gland (superficial to deep)

Answer 5

Facial nerve

Retromandibular vein

External carotid artery

Question 6

Innervation of the parotid gland

Answer 6

Great auricular nerve

Auriculotemporal nerve

Glossopharyngeal nerve

Question 7

Great auricular nerve (___ and ___) provides:

Answer 7

C2 and C3

Sensory supply to the parotid sheath, gland, and overlying skin

Question 8

The auricutemporal nerve is a branch of:

It provides:

And carries:

Answer 8

Mandibular division of trigeminal nerve

Sensory innervation

The postgangionic parasympathetic nerve from the optic ganglion to the parotid gland

Question 9

The glossopharyngeal nerve supplies what?

Answer 9

The secretory fibers to the parotid gland

Question 10

Motor innervation of the facial nerve

Answer 10

The muscles of facial expression

Posterior belly of digastric

Stylohyoid

Stapedius muscles

Question 11

Sensory innervation of the facial nerve

Answer 11

Small area behind the auricle

Question 12

Special sensory innervation of the facial nerve

Answer 12

Taste sensation to the anterior 2/3 of the tongue

Question 13

Parasympathetic innervation from the facial nerve

Answer 13

Supplies all the glands of the head and neck EXCEPT the parotid gland

Question 14

The facial nerve arises in the _____ as what two roots?

Answer 14

Pons

Large motor root

Small sensory root (intermediate nerve)

Question 15

The two roots of the facial nerve pass though the ____ ___ ___, long channel in the ____ part of the ____ bone.

Answer 15

Internal acoustic meatus

Petrous

Temporal

Question 16

Where do the 2 roots to for the facial nerve fuse? What does this form?

Answer 16

In the facial canal

Forms the facial nerve and the geniculate ganglion (collection of nerve cell bodies)

Question 17

Branches of the facial nerve from the facial canal

Answer 17

Greater petrosal nerve

Nerve To stapedius

Chorda tympani

Question 18

The greater petrosal nerve supplies:

Answer 18

Parasympathetic fibers to the lacrimal gland

Question 19

The nerve to stapedius provides:

Answer 19

Motor fibers to stapedius muscle of the middle ear

Question 20

The chorda tympani provides special sensory fibers to:

And parasympathetic fibers to:

Answer 20

Anterior 2/3 of the tongue

The submandibular and sublingual glands

Question 21

After exiting the ear, the chorda tympani enters the ______ fossa where it joins the:

Answer 21

Infratemporal

Lingual

Question 22

Where does the facial nerve exit?

Answer 22

The stylomastoid foramen

Question 23

After exiting the stylomastoid foramen, the facial nerve turns ____ toward the ____ ___, where it pierces the deep surface and forms:

Answer 23

Medial

Parotid gland

Plexus within the gland, parotid plexus

Question 24

Extracranial facial nerv e branches (not within the parotid gland)

Answer 24

Positioned auricular nerve

Nerve to the post belly of the digastric muscle

Nerve to the stylohyoid muscle

Question 25

What does the posterior auricular nerve innervate?

Answer 25

The intrinsic and extrinsic muscles of the outer ear and the occipital bell of the occipitofrontalis muscle

Question 26

Terminal branches of the facial nerve within the parotid gland

Answer 26

Temporal branch

Zygomatic branch

Buccal branch

Marginal mandibular branch

Cervical branch

Question 27

The temporal branch of the facial nerve innervates:

Answer 27

Frontalis, orbicularis oculi

Question 28

Zygomatic branch of the facial nerve innervated what

Answer 28

Orbicularis oculi

Question 29

Buccal branch of the facial innervates what

Answer 29

Orbicularis oris

Buccinators

Zygomaticus muscles

Question 30

The marginal mandibular branch of the facial nerve innervates what

Answer 30

Mentalis muscle

Question 31

The cervical branch of the facial nerve innervates:

Answer 31

Platysma