Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Gross Anatomy > Parotid, Temporal, & Infratemporal I & II > Flashcards

Parotid, Temporal, & Infratemporal I & II Flashcards

1
Q

The _____ is a depression encircled by the superior and inferior _____.

A

temporal fossa, temporal lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The _____ is a rough or jagged ridge marking the point where the contour of the temporal bone turns medially at a right angle to the temporal fossa to become the roof of the infratemporal fossa.

A

infratemporal crest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The _____ is a cavity with incomplete walls.

A

infratemporal fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

List the four (4) boundaries of the infratemporal fossa

A

Anterior: posterior wall of the maxilla
Medial: lateral pterygoid plate
Lateral: Ramus of the mandible
Roof: greater wing of sphenoid, temporal bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The _____ is a roughly triangular opening between the lateral pterygoid plate and the maxilla. It contains the _____, which communicates with other regions via several openings.

A

pterygomaxillary fissure; pterygopalatine/sphenopalatine fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The _____ inserts into the _____ to form the bony elements of the TMJ.

A

mandibular condyle, mandibular fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The _____ projects from the posterior ramus of the mandible; it has a greater dimension _____ than _____.

A

condylar process; medial-laterally, anteroposteriorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The _____ is a depression on the anterior surface of the neck of the mandible for the insertion of the lateral pterygoid muscle.

A

pterygoid fovea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The TMJ is a _____ surrounded by a _____ membrane.

A

synovial joint, synovial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The _____ extends from the sphenoid spine to the lingula and adjacent mandible.

A

sphenomandibular ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The _____ extends from the stylod process to the angle of the mandible.

A

stylomandibular ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The _____ and _____ play roles in stabilizing the TMJ and in helping to avoid extreme movements of the mandible.

A

sphenomandibular ligament, stylomandibular ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The TMJ is separated into superior and inferior chambers by the ______, which is continuous posteriorly with the _____.

A

articular disc, retrodiscal pad

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The _____ is loose connective tissue that contains the vessels and most of the nerves of the TMJ. Pain originating in the TMJ commonly originates here due to stretching or compression between the condyle and the anterior wall of the _____.

A

retrodiscal pad; external auditory meatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The articular disc and joint capsule of the TMJ attach anteriorly to the _____ of the _____.

A

superior head, lateral pterygoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The _____ absorb the tremendous pressure exerted by the muscles of mastication, not the TMJ.

A

teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The TMJ is reinforced laterally by the _____ and medially by the _____.

A

lateral ligament, spine of the sphenoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The _____ is more likely to break than to dislocate medially or laterally due to the strength of the lateral ligament and spine of the sphenoid.

A

condylar neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A blow to one side of the mandible may break the contralateral _____ and/or the ipsilateral one.

A

condylar neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The most significant attachment of the articular disc is the attachment to the _____ and _____ of the condyle via the _____ and _____.

A

medial, lateral poles of the condyle, medial, lateral collateral ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Describe the movement shown by the TMJ during the three phases of opening the jaw

A
  1. Rotation
  2. Rotation & Translation
  3. Translation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The only direction in which the TMJ may become dislocated is _____. This is reduced by pressing on the posterior mandibular teeth and pushing the condyles _____ and _____ into normal position.

A

anteriorly; inferiorly, posteriorly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The superficial head of the masseter originates in the the _____, while the deep head originates in the _____. Both heads of the masseter insert into the lateral side of the _____ of the mandible. The masseter is innervated by _____. The action of both heads of the masseter _____ the mandible; the action of the superficial head is to _____ and the action of the deep head is to _____.

A

anterior zygomatic arch,entire zygomatic arch; ramus; CN V3; elevate; protrude the mandible; retract the mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The temporalis muscle originates in the _____, _____, and _____. It inserts onto the _____ and the anterior margin of the _____ and is innervated by _____. The action of the vertical fibers is to _____ the mandible, while the action of the horizontal fibers is to _____ the mandible.

A

temporal fossa, posterior orbit, temporalis fascia; coronoid process, ramus, CN V3; elevate, retract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The superior head of the lateral pterygoid originates in the _____ and the _____, while the inferior head originates from the lateral pterygoid plate. The superior head inserts into the _____, _____, and _____; the inferior head inserts into the _____. The lateral pterygoid is innervated by the _____. Bilateral contraction of the lateral pterygoid results in _____, while unilateral contraction results in _____.

A

lateral pterygoid plate, infratemporal crest; articular disc, joint capsule, pterygoid fovea; pterygoid fovea; lateral pterygoid nerve from CN V3; protrusion of the mandible, deviation of the mandible towards opposite side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The medial pterygoid originates on the medial side of the _____, _____, and the notch between the _____. It inserts at the _____ of the mandible and is innervated by the _____. The principle action of the medial pterygoid on the mandible is to _____ it, while the secondary action is to move the mandible _____.

A

lateral pterygoid plate, pterygoid fossa, hamulus and the maxilla; angle, nerve to medial pterygoid via CN V3; elevate, contralaterally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

The terminal branches of the _____ supply blood to the lateral part of the skull.

A

external carotid artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

The _____ supplies the skin over the lateral skull.

A

superficial temporal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

The _____ supplies the temporalis muscle itself and the infratemporal fossa.

A

maxillary artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

The _____ of the maxillary artery lies on the medial side of the mandible. It gives off the _____ (and occasionally the _____), _____, _____, and _____.

A

mandibular part; middle meningeal, accessory middle meningeal, inferior alveolar, anterior tympanic, deep auricular arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

The _____ of the maxillary artery crosses the lateral pterygoid; It gives off the _____ (usually two), _____, _____, and _____.

A

pterygoid division; deep temporal, masseter, pterygoid, buccal arteries

32
Q

The _____ part lies medial to the lateral pterygoid muscle, and represents the division of the maxillary artery into its terminal branches. It supplies the _____, _____, _____, _____, and _____.

A

sphenopalatine (pterygopalatine) part; nasal cavity, orbit, face, palate, upper jaw

33
Q

The _____ and _____ veins join to form the _____.

A

superficial temporal, maxillary, retromandibular vein

34
Q

The _____ lies lateral to the maxillary artery and drains into the maxillary and deep facial veins. It also anastomoses with the _____ inside the cranium through communicating veins.

A

pterygoid venous plexus; cavernous sinus

35
Q

_____ is the major source of innervation to the lateral head.

A

Cranial Nerve V

36
Q

The _____ of CN V passes through the _____ and enters the sphenopalatine fossa, where it gives off branches to the _____ and a _____ to the orbit before exiting.

A

maxillary division, foramen rotundum, pterygopalatine ganglion, zygomatic nerve

37
Q

After exiting the foramen rotundum, the maxillary division of the trigeminal nerve is known as the _____. It gives off _____ to the posterior maxillary teeth and enters the _____.

A

infraorbital nerve; posterior superior alveolar nerves, inferior orbital fissure

38
Q

The maxillary nerve both gives fibers to and receives fibers from the _____. The fibers it receives are postganglionic parasympathetic fibers originating with the _____.

A

sphenopalatine ganglion; greater petrosal nerve

39
Q

The _____ of CN V passes through the _____ to supply structures in, or associated with, the infratemporal fossa.

A

mandibular division, foramen ovale

40
Q

The _____ passes into the floor of the mouth to supply general sensation to the anterior 2/3 of the tongue and floor of the mouth.

A

lingual nerve

41
Q

While in the upper part of the _____, the lingual nerve receives the _____, a branch of the facial nerve.

A

infratemporal fossa, chorda tympani

42
Q

Preganglionic parasympathetic chorda tympani fibers end in a _____, which sends secretomotor fibers to salivary and mucous glands in the floor of the mouth.

A

submandibular ganglion

43
Q

The sensory _____ enters the mandibular foramen, passes through the mandible supplying the teeth, and terminates as the _____ after passing through the mental foramen.

A

inferior alveolar nerve, mental nerve

44
Q

Before entering the mandibular foramen, the inferior alveolar nerve gives off the _____ which supplies the _____ belly of the digastric and the _____.

A

nerve to mylohyoid, anterior, mylohyoid

45
Q

The only mandibular branch that passes posteriorly is the_____. It usually makes a loop around the _____ before passing posteriorly around the condylar neck and supplying the _____.

A

auriculotemporal nerve; middle meningeal artery, TMJ

46
Q

The auriculotemporal nerve gives off secretomotor fibers of IX to the _____ before passing superiorly just anterior to the auricle to give sensory innervation to the _____ and the _____.

A

parotid gland, auricle, posterior temporal region

47
Q

The _____ emerges from between the two heads of the lateral pterygoid.

A

buccal nerve

48
Q

The lingual nerve emerges from the cleft between the _____ and _____.

A

lateral, medial pterygoids

49
Q

The inferior alveolar nerve emerges posterior to the _____.

A

lateral pterygoid

50
Q

The _____ travels deep to the lateral pterygoid and neck of the condyle to emerge anterior to the auricle.

A

auriculotemporal nerve

51
Q

The facial nerve enters through the _____, travels through the petrous bone, and exits the _____ with most of its fibers going on to innervate muscles of facial expression.

A

internal auditory meatus, stylomastoid foramen

52
Q

While in the petrous bone, CN VII gives off the chorda tympani, which enters the _____, comes to lie on or near the tympanic membrane, and leaves the skull by the _____.

A

middle ear cavity, petrotympanic fissure

53
Q

As CN VII makes a bend within the petrous bone, preganglionic parasympathetic fibers are given off as the _____. This nerve leaves the petrous bone via the _____ and passes to the foramen lacerum where it is joined by sympathetic fibers coming from the internal carotid artery as the _____.

A

greater petrosal nerve; hiatus for the greater petrosal nerve, deep petrosal nerve

54
Q

The greater petrosal nerve and deep petrosal nerve combine to form the _____, which travels through the pterygoid canal through the body of the sphenoid bone to arrive at the sphenopalatine fossa & ganglion.

A

nerve of the pterygoid canal (vidian nerve)

55
Q

To numb all branches of CN V3, a needle is passed through the _____ to the roof of the infratemporal fossa.

A

mandibular notch

56
Q

To numb the mandibular teeth for a dental procedure, anesthetic is injected at the _____ of the mandible to block the _____.

A

lingula, inferior alveolar nerve

57
Q

To block just the mental nerve, anesthetic is injected into the _____.

A

mental foramen

58
Q

To anesthetize the cheek, injection should be made into the mucosa covering the _____, located posterior to the 3rd mandibular molar.

A

retromolar fossa

59
Q

_____ is a sensory disorder in which the patient experiences strong paroxysmal pain in regions innervated by the maxillary and mandibular divisions. It is thought to be due to the presence of an anomalous artery that compresses the nerve root.

A

Trigeminal neuralgia (tic douloureux)

60
Q

Injury to the facial nerve distal to the _____ will paralyze muscles of facial expression, but not autonomic function or special sensation.

A

stylomastoid foramen

61
Q

Injury of CN VII within or anterior to the _____ will result in more circumscribed motor deficits.

A

parotid gland

62
Q

The _____ provides secretomotor innervation to the parotid gland via the auriculotemporal nerve.

A

glossopharyngeal nerve

63
Q

Preganglionic parasympathetic fibers emerge from the inferior ganglion of CN IX as the _____.

A

tympanic nerve

64
Q

Preganglionic fibers leave the _____ plexus as the lesser petrosal nerve.

A

tympanic

65
Q

The lesser petrosal nerve travels medioanteriorly to pass through the _____ or _____ and enter the infratemporal fossa and _____.

A

foramen spinosum, foramen ovale, otic ganglion

66
Q

The _____ is a very small parasympathetic ganglion that lies on the medial side of the mandibular nerve. Preganglionic parasympathetic fibers of the _____ synapse in the ganglion.

A

otic ganglion; lesser petrosal nerve

67
Q

Postganglionic parasympathetic fibers pass from the otic ganglion to the _____ and confer upon it the secretomotor capacity to stimulate the parotid gland to secrete.

A

auriculotemporal nerve

68
Q

The duct of the _____ runs anteriorly across the masseter and turns medially to penetrate the buccinator and empties at a small papilla opposite the _____.

A

parotid gland, second maxillary molar

69
Q

The _____ runs through the parotid gland to emerge as 5 motor branches.

A

facial nerve

70
Q

The _____ enters the parotid gland after passing around the neck of the condyle and carries _____ impulses originating with the glossopharyngeal nerve.

A

auriculotemporal, secretomotor

71
Q

The _____ provides sensory innervation of the parotid gland.

A

great auricular nerve

72
Q

The _____ enters the parotid gland and gives off its terminal maxillary and superficial temporal branches.

A

external carotid artery

73
Q

The _____ passes down through the parotid gland to drain the posterior face and infratemporal fossa

A

retromandibular vein

74
Q

In mumps, pain may be referred to the _____, _____, _____, and _____ due to stimulation of the auriculotemporal nerve.

A

auricle, external acoustic meatus, temporal region, TMJ

75
Q

Bacterial infection of the parotid gland produces an _____.

A

abscess

76
Q

Blockage of the parotid duct is most commonly due to the formation of a _____. Stimulation of secretion from the gland may be painful due to dilation of the proximal part of the duct.

A

calcified deposit

77
Q

If the parotid gland and the branches of CN VII are accidentally anesthetized, temporary _____ may result.

A

Bell’s palsy

Gross Anatomy (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions