Cranial Nerves Part 2

Front 1

What are the muscles of the first pharyngeal arch?

Back 1

1) Mastication muscles
2) Mylohyoid
3) Anterior digastric
4) Tensor veli palatini
5) Tensor Tympani

Front 2

What are the muscles of the second pharyngeal arch?

Back 2

1) Facial expression muscles
2) Stapedius
3) Stylohyoid
4) Posterior digastric

Front 3

What is the muscle of the third pharyngeal arch?

Back 3

Stylopharyngeus

Front 4

What are the muscles of the fourth pharyngeal arch?

Back 4

1) Muscles of pharynx
2) Intrinsic muscles of larynx
3) Muscles of palate (except tensor veli palatini)
4) Striated muscle of esophagus

Front 5

What does the GSA fiber of the trigeminal supply?

Back 5

1) Skin on the anterior head,
2) Nasal cavity
3) Paranasal Sinuses
4) Most of oral cavity
5) Anterior 2/3 of the tongue (not taste)
6) TMJ joint
7) Dura mater

Front 6

What does the SVE fiber of the trigeminal supply?

Back 6

1) Muscles of mastication
2) Anterior digastric
3) Mylohyoid
4) Tensor veli palatini
5) Tensor tympani

Front 7

T/F: The trigeminal nerve has a large trigeminal ganglion on the floor of the middle cranial fossa.

Back 7

True

Front 8

Where does the opthalmic (v1) exit in the middle cranial fossa?

Back 8

Superior Orbital Fissure

Front 9

Where does the maxillary (v2) exit in the middle cranial fossa?

Back 9

Foramen rotundum

Front 10

Where does the mandibular (v3) exit in the middle cranial fossa?

Back 10

Foramen ovale

Front 11

What type of cutaneous innervation does the opthalmic provide?

Back 11

1) Forehead
2) Anterior scalp

Front 12

What type of cutaneous innervation does the maxillary provide?

Back 12

1) Middle face

Front 13

What type of cutaneous innervation does the mandibular provide?

Back 13

1) Mandible
2) Temple

Front 14

Other cutaneous innervation of the head is by the cervical plexus. What regions are innervated by posterior rami?

Back 14

1) Occipital
2) Posterior scalp

Front 15

What are the cutaneous branches of V3?

Back 15

1) Auriculotemporal - Temple
2) Buccal - Cheek
3) Mental - Chin

Front 16

What are the two branches of the mandibular?

Back 16

1) Meningeal branch
2) Nerve to the medial pterygoid

Front 17

What is given off by the anterior division of the mandibular (v3)?

Back 17

Mostly motor except for the buccal.
1) Buccal (sensory)
2) Masseteric
3) Deep temporal
4) Nerve to the lateral pterygoid

Front 18

What is given off by the posterior division?

Back 18

Mostly sensory except for the mylohyoid.

1) Auriculotemporal
2) Lingual
3) Inferior alveolar (nerve to mylohyoid and mental branch off this)

Front 19

What division is the inferior alveolar nerve from? What branches does this nerve give off and are these branches sensory/motor?

Back 19

Posterior Mandibular. The inferior alveolar gives off:

1) Nerve to mylohyoid (motor)
2) Mental (sensory)

Front 20

What are the two muscles that the nerve to the mylohyoid supply?

Back 20

1) Mylohyoid
2) Anterior digastric

Front 21

Which division does the auriculotemporal branch off from the mandibular nerve?

Back 21

Posterior

Front 22

The posterior branch is mainly? Sensory or Motor?

Back 22

Mostly sensory except for the nerve to the mylohyoid

Front 23

Which artery does the auriculotemporal split by?

Back 23

It splits around the meningeal artery?

Front 24

What type of fibers does the auriculotemporal carry from the otic ganglion to the parotid gland?

Back 24

Postganglionic parasympathetic fibers

Front 25

The lingual is a branch off which division of the mandibular?

Back 25

Posterior

Front 26

What type of fibers does the lingual nerve contain?

Back 26

GSA - to the anterior 2/3 of the tongue.

Front 27

The lingual nerve also receives nerve fibers from which nerve?

Back 27

Chorda Tympani

Front 28

The chorda tympanic is a branch off of which cranial nerve?

Back 28

Facial Nerve

Front 29

What fiber type is in the chorda tympani?

Back 29

SVA - Taste from the anterior 2/3 of the tongue

Front 30

What ganglion does the chorda tympani send fibers to and what type of fibers are these?

Back 30

Submandibular

Preganglionic parasympathetic

Front 31

The submandibular ganglion is suspended from which nerve?

Back 31

Lingual

Front 32

What are the terminal branches of the inferior alveolar?

Back 32

1) incisive
2) mental

Front 33

What does the mental nerve exit from?

Back 33

Mental foramen

Front 34

What does the facial nerve first exit out of?

Back 34

The internal acoustic meatus

Front 35

When the lingual nerve first leaves the mandibular, what type of fibers does it have?

Back 35

GSA ONLY

Front 36

When the lingual nerve is joined by the chorda tympani, what type of fibers does it have?

Back 36

GVE and SVA

Front 37

After the lingual nerve joins the chorda tympani, what type of fibers does it have?

Back 37

GSA , GVE, and SVA

Front 38

The facial nerve travles through the ____ ear cavity and gives off the _____ which goes to the ______ fossa via the _______fissure.

Back 38

1) Middle
2) Chorda tympani
3) Infratemporal
4) Petrotympanic

Front 39

Where does the chorda tympani join the lingual nerve?

Back 39

In the infratemporal fossa

Front 40

The glossopharyngeal nerve innervates the ____ gland.

Back 40

Parotid

Front 41

The glossopharyngeal nerve splits into the _____ nerve that enters the ______ canaliculus and forms a ________ at the promontory of the middle ear

Back 41

1) Tympanic
2) Tympanic
3) Tympanic plexus

Front 42

What nerve does the tympanic nerve continue as? What hiatus does this go to to reach the ____ ganglion?

Back 42

1) The lesser petrosal
2) Lesser Petrosal Hiatus
3) Otic ganglion

Front 43

What is the pathway of the lesser petrosal nerve all the way to the parotid gland?

Back 43

Enters the middle cranial fossa through the lesser petrosal hiatus

Exits the middle cranial fossa through the foramen ovale

At this point it enters the infratemporal fossa and at this point it synapses at the otic ganglion.

From the otic ganglion it then gives postganglionic fibers to the mandibular division of the trigeminal and travels with the auriculotemporal nerve to the parotid gland.

Front 44

Where does the maxillary division exit the cranial cavity?

Back 44

Foramen rotundum

Front 45

Which fossa does the maxillary division enter?

Back 45

Pterygopalatine Fossa

Front 46

Which ganglion is suspended off maxillary division?

Back 46

Pterygopalatine ganglion

Front 47

What are the branches of the maxillary division?

Back 47

1) Pharyngeal (Palatovaginal Canal)
2) Zygomatic (Inferior orbital fissure)
3) Nasal branches (Sphenopalatine foramen)
4) Posterior Superior Alveolar (pterygomaxillary canal)
5) Infraorbital (inferior orbital fissure)
6) Ganglionic (to the pterygopalatine ganglion)
7) Greater/lesser Palatine Nerves (greater/lesser palatine canals)

Front 48

What are the two branches of the zygomatic nerve?

Back 48

1) Zygomaticofacial
2) Zygomaticotemporal

Front 49

The nasal branches of the maxillary nerve divide into what?

Back 49

1) Superior/Inferior posterior lateral nasal nerves
2) Nasopalatine nerve - passes through the incisive canal and incisive foramen

Front 50

The superior alveolar nerves innervate what?

Back 50

Maxillary teeth

Front 51

What are the different branches of the superior alveolar nerves?

Back 51

1) Posterior
2) Middle
3) Anterior

Front 52

Which is the only branch of superior alveolar nerve that comes directly off the maxillary?

Back 52

Posterior Superior Alveolar

Front 53

What and where do the middle and anterior superior alveolar nerves branch?

Back 53

1) Middle branches off infraorbital nerve and does so in the infraorbital groove

2) Anterior also branches off the infraorbital and does so in the infraorbital CANAL (not the groove like the middle branch)

Front 54

T/F: The infraorbital nerve is a continuation of the maxillary division?

Back 54

True

Front 55

Where does the infraorbital nerve exit to enter the inferior orbital fissure?

Back 55

Pterygopalatine fossa

Front 56

Where does the infraorbital nerve emerge to give branchesof nasal, inferior palpebral, and superior labial?

Back 56

The infraorbital foramen

Front 57

Innervation of the palate is through which nerves?

Back 57

1) Lesser palatine nerve (less palatine canal)
2) Greater palatine nerve (greater palatine canal)
3) Nasopaltine nerve (incisive canal/foramen)

Front 58

What does the facial nerve exit in order to enter the facial canal?

Back 58

The internal acoustic meatus

Front 59

Where does the facial nerve exit the skull at?

Back 59

The stylomastoid foramen

Front 60

After exiting the skull, the facial nerve gives off more branches/divisions. What are these?

Back 60

1) Posterior auriculor
2) Posterior digastric
3) Stylomastoid
4) Temporofacial Division
5) Cervicofacial Division

Front 61

What are the 5 terminal branches of the facial nerve?

Back 61

1) Temporal
2) Zygomatic
3) Buccal
4) Mandibular
5) Cervical