Temporal Region And Muscles Of Mastication

Front 1

Mandible's weight is primarily borne by...

Back 1

the resting tonus of the temporalis m and the sphenomandibular ligament

Front 2

What prevents posterior dislocation of the TMJ?

Back 2

the temporomandibular L and the postglenoid tubercle

Front 3

What type of synovial joint is the TMJ?

Back 3

modified hinge

Front 4

The superior compartment of the TMJ is responsible for what motion?

Back 4

anteroposterior translation

Front 5

lateral excursion=

Back 5

unilateral protrusion + some depression

Front 6

Mandible's weight is primarily borne by...

Back 6

the resting tonus of the temporalis m and the sphenomandibular ligament

Front 7

What prevents posterior dislocation of the TMJ?

Back 7

the temporomandibular L and the postglenoid tubercle

Front 8

What type of synovial joint is the TMJ?

Back 8

modified hinge

Front 9

The superior compartment of the TMJ is responsible for what motion?

Back 9

anteroposterior translation

Front 10

lateral excursion=

Back 10

unilateral protrusion + some depression

Front 11

what are the muscles of mastication?

Back 11

temporalis m
anterior belly of digastric m
lateral pterygoid m
medial pterygoid m
masseter m

Front 12

What is involved with depression of the jaw?

Back 12

gravity
inferior head of the lateral pterygoid m
anterior belly of the digastric m

Front 13

bruxism is...

Back 13

unconscious grinding of the teeth

Front 14

The GA brs of the V3 nerve are...

Back 14

meningeal
buccal
auriculotemporal
lingual
inferior alveolar -> mental nerve

Front 15

What are the GE brs of the V3?

Back 15

nerve to the mylohyoid
anterior belly of digastric
others go directly to the mm of mastication

Front 16

auriculotemporal nerve passes ___TMJ and ____ to the EAM.

Back 16

behind TMJ
anterior to the EAM

Front 17

What happens in TMJ disorder?

Back 17

When opening the mouth, the disc gets pulled forward causing the bones to grind against each other.

Front 18

Which nerve suspends the submandibular ganglion?

Back 18

lingual n

Front 19

Injury to the lingual n distal to where it joins the chorda tympani will have what symptoms?

Back 19

Decreased taste and salivary secretions
anesthesia of 2/3 anterior tongue, floor of mouth, and lingual gums

Front 20

What is the sensory nerve of the mandibular teeth?

Back 20

Inferior alveolar nerve

Front 21

maxillary artery originates in the substance of the parotid gland and enters which fossa?

Back 21

infratemporal

Front 22

the pterygoid venous plexus connects with the cavernous sinus by which veins?

Back 22

emissary

Front 23

Where is the mandibular fossa located?

Back 23

a depression on the inferior surface of the zygomatic arch...the site of TMJ

Front 24

What tiny sensory branch of the maxillary division of the trigeminal nerve is found in the temporal fossa?

Back 24

zygomaticotemporal nerve

Front 25

Which fossa is the pterygoid venous plexus in?

Back 25

Infratemporal fossa

Front 26

How is communication with the cranial cavity and the infratemporal fossa established?

Back 26

Through the foramen ovale and foramen spinosum

Front 27

How is the communication with the pterygopalaitne fossa and the infratemporal fossa established?

Back 27

via the pterygomaxillary fissure

Front 28

Where is the mandibular fossa located?

Back 28

a depression on the inferior surface of the zygomatic arch...the site of TMJ

Front 29

What tiny sensory branch of the maxillary division of the trigeminal nerve is found in the temporal fossa?

Back 29

zygomaticotemporal nerve

Front 30

Which fossa is the pterygoid venous plexus in?

Back 30

Infratemporal fossa

Front 31

How is communication with the cranial cavity and the infratemporal fossa established?

Back 31

Through the foramen ovale and foramen spinosum

Front 32

How is the communication with the pterygopalaitne fossa and the infratemporal fossa established?

Back 32

via the pterygomaxillary fissure

Front 33

How is communication between the infratemporal fossa and the floor of the orbit established?

Back 33

via the inferior orbital fissure

Front 34

What parts of the mandible and the temporal bone articulate to form the TMJ?

Back 34

condyle of the mandible
zygomatic part of the temporal bone

Front 35

Which compartment of the articular disc permits anteroposterior translation of the mandible?

Back 35

superior compartment

Front 36

What is this thing called mastication anyway?

Back 36

It is the mechanical breakdown of food within the oral cavity.

Front 37

Mastication is accomplished on only one side of the mouth at a time. True or False?

Back 37

True

Front 38

Which is the largest division of the trigeminal nerve?

Back 38

Mandibular division. It exits the cranial cavity via foramen ovale and enters the infratemporal fossa

Front 39

The mandibular division suspends tow parasympathetic ganglia. What are they?

Back 39

otic
submandibular

Front 40

How does the meningeal branch enter the middle cranial fossa?

Back 40

Via the foramen spinosum with the middle meningeal artery.

Front 41

What general afferents does the buccal nerve carry?

Back 41

those from the skin of the cheek and oral mucosa

Front 42

The direct branch of the mandibular nerve to the medial pterygoid muscles also supplies what muscle?

Back 42

Tensor tympani muscle in the middle ear

Front 43

What the heck is the tensor veli palatini muscle?

Back 43

It's the soft palate deep to the infratemporal fossa.

Front 44

Where is the otic ganglion?

Back 44

It's suspended on the medial side of the mandibular nerve just as it exits the foramen ovale. Auriculotemporal nerve carries the hitchhiking fibers to the parotid gland.

Front 45

Whare is the symptom of auriculotemporal nerve disorder?

Back 45

excessive sweating and redness of the cheek during eating.

Front 46

Lingual nerve supends the ______in the floor of the mouth.

Back 46

submandibular ganglion

Front 47

What will a chorda tympani injury result in?

Back 47

A decrease in salivary secretion and a loss of taste from most of the tongue on that side.

Front 48

Why is the inferior alveolar nerve unique?

Back 48

It is a GA nerve that gives off a GE branch (nerve to mylohyoid).

Front 49

What forms the dental plexus and where?

Back 49

The inferior alveolar nerve in the mandibular canal

Front 50

What are the branches of the maxillary artery in the infratemporal fossa?

Back 50

deep auricular artery-to middle ear
anterior tympanic artery-to middle ear
inferior alveolar artery-accompanies the inferior alveolar nerve
middle meningeal artery-enters the foramen spinosum
buccal artery-with the buccal nerve
direct muscular brs

Front 51

Which artery is vulnerable to damage in blows to the temporal part of the skull?

Back 51

Middle meningeal artery. results in a epidural hematoma, in which arterial blood pools between the dura mater and the cranial bone

Front 52

Once the maxillary artery enters the pterygopalatine fossa, it divides into the...

Back 52

infraorbital
posterior superior alveolar
sphenopalatine
greater palatine

Front 53

Where's the pterygoid venous plexus?

Back 53

between the medial and lateral pterygoid mm
between the lateral pterygoid and temporalis mm