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SP2017 Anatomy Exam#2 > Lecture 11- Oral Cavity and Palate > Flashcards

Lecture 11- Oral Cavity and Palate Flashcards

1
Q

Posterior extent of oral cavity

A

oropharyngeal isthmus

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2
Q

Orbicularis oris is innervated by ..

A

CNVII

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3
Q

The 1st arch at the posterior etent of the oral cavity is the…

A

palatoglossus

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4
Q

The 2nd arch in the oral cavity is…

A

palatopharyngeous (which is considered part of the oropharynx as well as the palatine tonsil)

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5
Q

… and… are the predominant mm. of the soft palate along with the uvular muscle

A

tensor veli palatini and levator veli palatini

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6
Q

The tensory veli palatini muscle is between the…

A

medial and lateral pterygoid plates

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7
Q

The inferior extent of the tensor veli palatini muscle/where the tendon connects hooks underneath the…

A

hamulus

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8
Q

Tensor veli palatini is vertical and across the soft palate is the…

A

aponeurosis

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9
Q

From posterior view of soft palate you can see…. muscle which is posterior and medial to … muscle.

A

levator veli palatini

tensor

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10
Q

The… artery which is a branch of… is the vascular supply of the palate

A 
descending palatine (greater and lesser palatine)
maxillary
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11
Q

The greater palatine artery supplies the… palate

A

anterior/hard

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12
Q

The lesser palatine artery supplies the… palate

A

posteior/soft

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13
Q

The … artery, a branch (from facial a.) also supplies the palate. Along with…. artery which is a branch of ascending pharyngeal artery (from ECA)

A
  • ascending palatine

- palatine

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14
Q

Venous drainage of the palate is via the

A

pterygoid and pharyngeal plexuses

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15
Q

The nasopalatine nerve will come out of the incisive foramen to anastomose with… on the palate

A

greater palatine nerve

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16
Q

The greater palatine artery will go through the incisive foramen to anastomose with… in the nasal cavity

A

sphenopalatine artery

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17
Q

Innervation of the palate (sympathetic and parasympathetic) come from greater petrosal (CNVII) and deep petrosal into the ganglion and then to the palate through which nerves?

A

nasopalatine
greater palatine
lesser palatine

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18
Q

What nerve innervates Tensor veli palatini muscle? This soft palate innervation is different from all the others

A

CNV3-mandibular

embyrologic 1st arch

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19
Q

The Levator veli palatini, palatoglossus, palatopharyngeus, uvular and salpingopharyngeus are all soft palate mm. that are innervated by…

A

CNX - Vagus

embryologic arches 4-6

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20
Q

The palatine tonsils have 5 arterial branches supplying it:

A 
tonsillar branches of:
1. Lesser palatine
2. Ascending pharyngeal
3. Ascending palatine
4. Facial
Dorsal Lingual
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21
Q

Palatine tonsils may be removed but heavy bleeding may occur. Bleeding from… is common

A

paratonsillar v.

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22
Q

CN…. lies on lateral pharyngeal wall of tonsillar bed, it is on its way to…. and has a tonsillar branch

A
  • IX (glossopharyngeal)

- posterior 1/3 of tongue

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23
Q

Submandibular duct is also called… duct

A

wharton’s

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24
Q

The opening of the submandibular duct is located at the …

A

sublingual caruncle

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25
Q

Submandibular gland is… and extraoral

A

intraoral

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26
Q

Submandibular duct stays medial to… gland

A

sublingual

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27
Q

The … nerve emerges between the two pterygoid mm. and enters oral cavity beneath superior constrictor and then will cross the ..duct twice (goes underneath first)

A
  • lingual

- submandibular

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28
Q

Lingual nerve is a branch of..

A

CNV3

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29
Q

The submandibular ganglion is providing…. innervation from… to…. glands. It is at the level of…

A
  • parasympathetic
  • chorda tympani (from VII)
  • sublingual and submandibular
  • 3rd mandibular molar
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30
Q

Sympathetic fibers to sublingual and submandibular glands are from…

A

external carotid plexus

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31
Q

Chorda tympani (from VII) carries…. fibers and synapses in the… ganglion

A
  • presynaptic parasympathetic

- submandibular

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32
Q

The submandibular ganglion is suspended from… nerve by 2 or more short nerve branches

A

Lingual

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33
Q

The hypoglossal nerve is deep to… and…. mm.

A

-posterior belly of digastric and stylohyoid

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34
Q

The hypoglossal nerve runs anterior between … gland and … muscle

A
  • submandibular

- hyoglossus

35
Q

Hypoglossal nerve is… to lingual nerve and … to mylohyoid muscle and it ends in … tongue to provide… innervation

A
  • inferior
  • superior
  • posterior
  • motor
36
Q

Parotid gland is innervated by…

A

CNIX

37
Q

Glossopharyngeal n. travels between… and…. runs lateral to… to enter pharynx. It then continues anteriorly through the…. and ends in … tongue to receive sensory innervation (general sensory and special sensory)

A
  • superior and middle constrictor mm.
  • stylopharyngeus
  • tonsillar region
  • posterior
38
Q

Extrinsic mm of the tongue (4)

A

palatoglossus
styloglossus
hyoglossus
genioglossus

39
Q

Intrinsic mm. of tongue

A

superior longitudinal
inferior longitudinal
vertical
transverse

40
Q

Palatoglossus is innervated by… which is also innervating most of soft palate except tensor which is innervated by

A

CNX

CNV3

41
Q

The intrinsic muscles of the tongue are innervated by … as well as the extrinsic mm. (genioglossus, hyoglossus, styloglossus) except palatoglossus which is innervated by..

A

CNXII

CNX

42
Q

The genioglossus muscle is … and fused in midline and serves to… the tongue

A
  • paired

- protrude

43
Q

…. of CNXII affects straight protrusion of the tongue

A

unilateral paralysis

44
Q

A lesion of CNXII is a LMN and it will result in a deviation of tongue toward… this is because the intact side protrudes more than affected side

A

paralyzed side

45
Q

Bilateral paralysis of CNXII results in … or more seriously may cause…

A
  • inability to protrude tongue

- tongue to fall back and occlude airway (suffocation)

46
Q

Oral cavity arterial supply:

  1. … supplies most superficial strutures
  2. …. supplies buccinator
  3. … supplies most of deeper structures
A
  1. facial a.
  2. maxillary a.
  3. lingual a,
47
Q

The lingual artery has these 3 branches

A
  1. dorsal lingual a.
  2. deep lingual a.
  3. sublingual a.
48
Q

The first branch of lingual artery… will branch first

A

dorsal lingual a.

49
Q

Lingual a. will bifurcate with… which will go anterior into body of anterior tongue and… which will stay deep and go to anterior

A

deep lingual

sublingual

50
Q

The…. a branch of… receives taste from anterior 2/3 of tongue and then travels with lingual n.

A

chorda tympani

CNVII

51
Q

The… nerve receives taste from 1/3 posterior tongue

A

CNIX (glossopharyngeal)

52
Q

The… nerve receives taste from root of tongue and epiglottis

A

CNX (vagus)

53
Q

The… nerve branch of… receives general sensory for anterior 2/3 of tongue

A

lingual

CNV3

54
Q

The… nerve receives general sensory for 1/3 posterior tongue

A

CNIX (glossopharyngeal)

55
Q

The… nerve receives general sensory for root of tongue and epiglottis

A

CNX (vagus)

56
Q

The… nerve is the temrinal branch of IAN

A

mental

57
Q

The primary epithelium of the oral cavity is…. epithelium

A

nonkeratinized stratified squamous

58
Q

In certain areas of the oral cavity, there is a keratinized and parakeratinized (transition area) stratified squamous epithelium. These areas include…

A

hard palate, gingiva and dorsum of tongue which is part of the masticatory mucosa

59
Q

The filiform papillae are most… , they are highly …. and … in shape which face posteriorly. Do they have tastebuds?

A
  • numerous
  • keratinized
  • conical
  • NO
60
Q

The fungiform papillae are less…. and they are lightly…. and red
Do they have tastebuds?

A
  • numerous
  • keratinized
  • YES
61
Q

The foliate papillae/ folds are found… but are usually lost through…
Are they keratinized?
Do they have tastebuds?

A
  • on lateral tongue
  • adolescence
  • no
  • YES
62
Q

The vallate (circumvallate) papillae are… and there are only about… of them and they have a …. around them.
Are they keratinized
Do they have tastebuds?

A 
large
8-12
"moat"
-no or only slightly
-YES
63
Q

The taste bud has… cells which receive the chemoreception, and around them are… cells and at then at the apex is a… at the base are… cells (stem cell layer)

A
  • neuroepithelial/gustatory
  • supporting
  • taste pore
  • basal
64
Q

Enamel is made by and what is the predominant substances

A

ameloblasts

calcium HA

65
Q

Dentin is produced by

A

odontoblasts

66
Q

The periodontium includes…

A

cementum
periodontal ligaments
alveolar bone
gingiva

67
Q

The major salivary glands are … paired and produce…% of saliva

A
  • 3

- 90%

68
Q

The minor salivary glands are… and produce.. % of saliva

A
  • numerous

- 10%

69
Q

The salivary glands have two major cell types

A

serous

mucous

70
Q

The… cells are polarized, protein-secreting, pyramidal, have zymogen granules and are very bsaophilic (RER and ribosomes)

A

serous

71
Q

The.. cells produce hydrophilic glycoprotein mucins and are cuboidal or columnar in shape

A

mucous

72
Q

The… cells are within basal lamina of secretory unit and contrats and sccelerates secretion and prevents distension when lumen fills

A

myoepithelial

73
Q

An… is a blind sac composed of secretoy cells. there are 3 kinds:

A
  • acinus

- serous, mucous, mixed

74
Q

Serous acini are generally… shaped

A

spherical

75
Q

mucous acini are generally … shaped

A

tubular

76
Q

In traditional fixation methods, mucous acini appear to have a cap of … which is an artifact

A

serous cells (serous demilunes)

77
Q

The salivon is composed of…

A

acinus
intercalated duct
striated duct
excretory duct

78
Q

The parotid gland is mostly … cells in the acinus only

A

serous

79
Q

The submandibular gland is mostly… cells but has some… too

A

serous

mucous

80
Q

The sublingual gland is mostly…. cells with only a small amt of… cells

A

mucous

serous

81
Q

The ducts of glands are continuous with acini and there are 3 segments:

A

intercalated ducts
striated ducts
excretory ducts

82
Q

The… gland is largest, is extraoral and has a long excretory duct which comes out at the… papilla located at… It has … acinar, mostly… cells. And you can see …cells which you dont see in other glands

A
  • parotid
  • parotid papilla
  • 2nd molar
  • branched
  • serous
  • adipose
83
Q

The… gland is located…and… has a long excretory duct which terminates in the… and has … acinar and what kind of cells?

A
  • intraoral
  • extraoral
  • sublingual caruncles
  • branched tubular
  • mixed but mostly serous
84
Q

The… gland is the smallest of the 3 major and is located in the… it has multiple ducts in the… fold and is … acinar. It has … cells

A
  • sublingual
  • floor of mouth/intraoral
  • sublingual
  • branched tubuloacinar
  • mixed but mostly mucous

SP2017 Anatomy Exam#2 (14 decks)

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