Brainscape's Knowledge GenomeTM

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


See full index

Anatomy Exam 4 > Oral Region > Flashcards

Oral Region Flashcards

1
Q

Where is the TMJ joint

A

where the mandibular condyle of the mandible articulates with the mandibular fossa and the articular tubercle of the temporal bone

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

What movements are possible at the TMJ?

A

depression, elevation, protrusion, retrusion, lateral (side to side) movement

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

Dislocation of the TMJ usually occurs….

A

anteriorly

when mandibular condyle displaces anterior to the articular tubercle

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

What is TMJD (temporomandibular joint disorder)?

A

pain/functional disorders that influence the muscles of mastication andTMJ

prevalence 5-12% more common in younger ppl and children

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

Innervation rule for muscles of mastication? Action rule?

A

motor innervation: mandibular n. (CN V3)

move the TMJ

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

Where is temporalis located? Where does it insert?

A

occupies temporal and infratemporal fossae

inserts onto coronoid process of mandible

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

Action of temporalis?

A

elevates and retrusion of mandible

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

Where is masseter muscle located? insertion?

A

occupies infratemporal fossa, inserts onto ramus of mandible

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

Action of mandible?

A

elevates mandible

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

Where is lateral pterygoid located? Origin? insertion?

A

occupies infratemporal fossa

O: sphenoid

I: TMJ joint capsule and mandibular condyle

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

Action of lateral pterygoid?

A

protrude mandible (bilateral)

lateral movement (unilateral)

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

Where is medial pterygoid located? Origin? Insertion?

A

occupies infratemporal fossa

O: sphenoid

I: ramus of mandible

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

Action of medial pterygoid?

A

elevate and protrude mandible (bilateral)

lateral movement (unilateral)

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

Name the 4 somatic sensory branches of mandibular n. (CN V3)

A

buccal nerve

lingual n.

auriculotemporal n.

inferior alveolar n.

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

What does the buccal n. innervate?

A

somatic sensory to cheek and mandibular gingivae

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

What does the lingual n. innervate?

A

somatic sensory to mandibular gingivae. floor of mouth and anterior 2/3 tongue

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

What does auriculotemporal n. innervate?

A

somatic sensory to ear region

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

What does inferior alveolar n. innervate?

A

somatic sensory to mandibular teeth and gingivae, chin, lip

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

Why would you perform a inferior alveolar nerve block? Where would you direct the needle?

A

to anesthetize region for dental work, direct needle toward mandibular foramen

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

Nerve to mylohyoid is a branch off of? What does it innervate?

A

inferior alveolar n.

motor to mylohyoid and anterior digastric

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

Chorda tympani is a branch off of….joins….to reach tongue

A

facial n. (CN VII)

lingual n. (CN V3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What does chorda tympani innervate?

A

special sensory to anterior 2/3 of tongue

parasympathetic to submandibular and sublingual salivary glans

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

The maxillary a. is a branch off of….It gives off…..and….in the infratemporal fossa

A

External carotid a.

middle meningeal and inferior alveolar

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

middle meningeal a. supplies blood to? by passing through?

A

dura mater

foramen spinosum

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

Inferior meningeal a. supplies blood to? by passing though?

A

mandibular teeth

mandibular foramen and canal

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

What is the pterygoid venous plexus?

A

network of veins that drains much of the area supplied by the maxillary a.

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

Where does the pterygoid venous plexus drain?

A

pterygoid venous plexus >

maxillary vein>

retromandibular vein>

external jugular vein

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

The pterygoid venous plexus communicates with? Why is this clinically relevant?

A

cavernous sinus and facial vein

potential SF to deep pathway for infx

29
Q

Where is the pterygopalatine fossa? What does it communicate with?

A

small space btwn maxilla and pterygoid process of sphenoid

communicates with infratemporal fossa, nasal cavity, orbital and middle cranial fossa

30
Q

How does the pterygopalatine fossa communicate with the nasal cavity?

A

sphenopalatine foramen

31
Q

How does the pterygopalatine fossa communicate with the orbit?

A

inferior orbital fissure

32
Q

How does the pterygopalatine fossa communicate with the middle cranial fossa?

A

foramen rotundum

33
Q

Name the contents of the pterygopalatine fossa

A

maxillary n.

pterygopalatine ganglion

branches of maxillary a.
-sphenopalatine, descending palatine, infraorbital and posterior superior alveolar

34
Q

The maxillary n. exits the pterygopalatine fossa as the…

A

infraorbital nerve

35
Q

The pterygopalatine ganglion receives…

A

preganglionic parasympathetic fibers from facial n.

36
Q

What does the pterygopalatine ganglion supply?

A

lacrimal gland

mucosa of nasal cavity and palate

37
Q

Which branch of the maxillary n. supplies somatic sensory innervation to the mucosal lining of the upper lip?

A

infraorbital

38
Q

Which branch of the mandibular n. supplies somatic sensory innervation to the mucosal lining of the lower lip?

A

mental n.

39
Q

Which branch of the mandibular n. supplies somatic sensory innervation to the mucosal lining of the cheek?

A

buccal n.

40
Q

Define gingivae

A

fibrous tissue with mm

41
Q

Total number of adult teeth? how many incisors per quadrant?

A

32

2

42
Q

How many canine per quadrant? Premolar? molar?

A

1

2

3

43
Q

What provides somatic sensory innervation to the gingiva?

A

branches of the maxillary n.

superior alveolar nn (via infraorbital n.)

nasopalatine n.

greater palatine n.

44
Q

What provides somatic sensory innervation to the teeth?

A

branches of maxillary n.

-superior alveolar nn.

45
Q

What supplies blood to the maxillary teeth?

A

superior alveolar aa. (branches off of maxillary a.)

46
Q

What supplies blood to the mandibular teeth?

A

inferior alveolar aa.

branches off maxillary a.

47
Q

Where is the root of the tongue?

A

posterior 1/3 of tongue

lingual tonsil on dorsal surface

48
Q

What is the terminal sulcus?

A

V shaped groove on dorsal surface of tongue separates body and root

49
Q

What are lingual papillae

A

bumps on dorsal surface of body of tongue, contain taste receptors

50
Q

What do the intrinsic muscles of the tongue do?

A

control shape and fine movements of the tongue

51
Q

What do the extrinsic muscles of the tongue do?

A

have attachments outside of the tongue

control position of tongue

52
Q

Name the extrinsic muscles of the tongue

A

genioglossus

styloglossus

hyloglossus

palatoglossus

53
Q

Where does genioglossus attach? Action?

A

mandible

protrude tongue, deviate tongue to side

54
Q

Where does styloglossus attach? Action?

A

styloid process

retrude tongue

55
Q

Where does hyoglossus attach? Action?

A

hyoid bone

depress tongue

56
Q

Where does palatoglossus attach? Action?

A

soft palate

elevate posterior tongue or depress soft palate

57
Q

What provides somatic motor innervation to the muscles of the tongue?

A

hypoglossal-most of tongue muscles

vagus- palatoglossus

58
Q

What provides somatic sensory innervation to the tongue?

A

lingual (branch of CNV3)-anterior 2/3

glossopharyngeal (CN IX)-posterior 1/3

59
Q

What provides special sensory innervation to the tongue?

A

facial nerve via chorda tympani- anterior 2/3

glossopharyngeal-posterior 1/3

vagus-near epiglottis

60
Q

What supplies blood to the tongue?

A

lingual a. (branch of external carotid a.)

61
Q

What drains blood from the tongue?

A

deep lingual veins, SF location on either side of the frenulum

62
Q

Where do the deep lingual veins drain?

A

deep lingual veins>

lingual vein >

internal jugular v.

63
Q

The parotid duct opens into..

A

opposite 2nd upper molar

64
Q

List the pathway for parasympathetic innervation of the parotid gland

A

preganglionic cell bodies: brain >

preganglionic fibers: lesser petrosal branch of glossopharyngeal >

postganglionic CB: otic ganglion**

postganglionic fibers: join and travel with auriculotemporal n.

65
Q

Where is the submandibular gland located?

A

inferior to body of mandible

66
Q

Submandibular ducts open into…

A

oral cavity on either side of the lingual frenulum

67
Q

Where are the sublingual glands located?

A

deep to mucosa of oral cavity floor

68
Q

several small sublingual ducts open…

A

on floor of mouth, lateral to tongue

69
Q

List the pathway for parasympathetic innervation to the submandibular and sublingual glands

A

Pre CB: brain

Pre fibers: facial n. via chorda tympani

Post CB: submandibular ganglion >

post fibers: follow arteries to reach gland

Anatomy Exam 4 (6 decks)

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