Dissection 11

Question 1

The Temporalis muscle does what?

Answer 1

Vertical fibers elevate the mandible
Horizontal fibers retract he jaw
It also allows for side to side motion

Question 2

The masseter muscle causes what movement?

Answer 2

Elevates the mandible, and causes protraction

Question 3

The Lateral Pterygoid causes what movement?

Answer 3

Only one that depresses the mandible. Also cause protraction and side to side movement

Question 4

The Medial Pterygoid causes what movement?

Answer 4

Elevation, Protraction, and side to side movement

Question 5

What pharyngeal arch do the muscles of mastication derive from?

Answer 5

1

Question 6

Where does the Mandibular Division of CN V (V3) exit?

Answer 6

Foramen ovale

Question 7

What is the only division of the trigeminal nerve that has branchiomotor fibers?

Answer 7

V3

Question 8

Where does the meningeal nerve enter the skull?

Answer 8

The foramen spinosum

Question 9

The auriculotemporal nerve provides sensory to what?

Answer 9

The TMH, parotid gland, and the skin of the anterior ear and temporal region

Question 10

The Buccal nerve provides sensory to what?

Answer 10

The cheek and the mucous membrane on the inside wall of the cheek

Question 11

The lingual nerve provides sensory to what?

Answer 11

The anterior 2/3 of the tongue

Question 12

The inferior alveolar provides sensory to what?

Answer 12

The mandibular teeth

Question 13

What is the only horizontal nerve in the infratemporal fossa?

Answer 13

Auriculotemporal

Question 14

What nerves do the parasympathetic fibers arise from?

Answer 14

CN III, VII, and IX

Question 15

Describe the path of the preganglionic parasympathetic to the parotid gland.

Answer 15

Through the middle ear to form the lesser petrosal nerve and exits the skull through the foramen ovale and synapses in the otic gland

Question 16

Describe the path of the postganglionic parasympathetics to the parotid gland.

Answer 16

They join the auriculotemporal brach of V3

Question 17

The chorda tympani is a branch of what nerve?

Answer 17

Facial nerve

Question 18

Where does the chordi tympani exit in the skull?

Answer 18

The Petrotympanic fissure

Question 19

What does the maxillary artery supply?

Answer 19

structures in the infratemporal fossa, the pterygopalatine fossa, and the nasal cavity

Question 20

Where does the maxillary artery enter the skull?

Answer 20

The pterygomaxillary fissure

Question 21

What are the attachment points of the temporalis?

Answer 21

temporal fossa and coronoid process

Question 22

What are the attachments of the massester?

Answer 22

The zygomatic arch to the ramus of the angle of the mandible

Question 23

What are the attachment of the medial pterygoid muscle?

Answer 23

The medial side of the lateral pterygoid plate to the angle of the mandible

Question 24

What are the attachments of the lateral pterygoid muscle?

Answer 24

The lateral surface of the lateral pterygoid plate to the articular disk of the TMJ and the neck of the mandible

Question 25

Where does the meningeal nerve enter and exit the skull?

Answer 25

Foramen ovale; foramen spinosum

Question 26

What does the nerve of the mylohyoid innervate?

Answer 26

Mylohyoid and the anterior belly of the digastric

Question 27

Where does the lessor petrosal nerve exit the middle ear?

Answer 27

Foramen ovale

Question 28

What does the preganglionic fibers of the lesser petrosal nerve synapse in?

Answer 28

otic ganglion

Question 29

What does the chorda tympani carry?

Answer 29

Special viscerosensory fibers (anterior 2/3) and the preganglionic parasympathetic to the sub glands

Question 30

The special viscerosensory fibers of the chorda tympani synapse in ____.

Answer 30

The geniculate ganglion

Question 31

The preganglionic parasympathetics of the chorda tympani syanpse in _______.

Answer 31

The submandibular ganglion

Question 32

Where does the maxillary artery enter the skull?

Answer 32

the pterygomaxillary fissure

Question 33

Describe the tympanic nerve

Answer 33

It is a parasympathetic nerve of CN IX that forms the tympanic plexus of the middle ear

Question 34

Within the carotid sheath, which vessel is most posterior

Answer 34

Vagus N

Question 35

What does the external branch superior laryngeal nerve carry?

Answer 35

branchiomotor to the cricothyroid muscle

Question 36

What does the internal branch of the internal laryngeal nerve carry

Answer 36

General Somatosensory from epiglottis to vocal cords

Question 37

What does the right recurrent laryngeal loop around?

Answer 37

The R subclavian artery

Question 38

What does the left recurrent laryngeal loop around?

Answer 38

The L subclavian artery

Question 39

What does the R laryngeal nerve carry?

Answer 39

Branchiomotor to all intrinsic muscles of larynx (except cricothyroid) General somatosensory from larynx inferior to vocal folds

Question 40

The cervical superior chain is ______ to the carotid sheath

Answer 40

Posterior

Question 41

The internal carotid plexus contains ___?

Answer 41

vessels of the brain and to the dilator pupillae and superior tarsal muscles

Question 42

The external carotid plexus contains ______

Answer 42

vessels and sweat glands of the face

Question 43

Where do the superior and inferior thyroid arteries come off of?

Answer 43

Superior--> external carotid | Inferior--> Thyrocervical trunk