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Flashcards in Oral Cavity Deck (146):
1

Attachment for buccinators and superior constrictor?

a. Sphenomandibular ligament
b. Pterygomandibular raphe
c. Stylomandibular ligament
d. Pharyngeal raphe

B

2

What artery supplies the buccinator?

A. pterygopalatine part of the maxillary artery
B. mandibular part of the maxillary artery
C. pterygoid part of the maxillary artery

C

3

The buccinator is active in smiling. T/F

T

4

Which muscles keeps the cheek taut to prevent it from folding and being injured during chewing?

Buccinator

5

Muscle which resists teeth to tilt outwards

Buccinator and orbicularis oris

6

Muscle which compresses the cheeks

Buccinator

7

This muscle elevates the mandible and protracts it to a limited extent

A. Temporalis
B. Masseter
C. Medial Pterygoid
D. Lateral Pterygoid

B

8

Sensory nerve supply of posterior ⅓ of the tongue

CN IX

9

Sensory nerve supply of the anterior hard palate

CN V

10

Motor nerve supply of tensor veli palatini

CN V

11

Taste sensation of anterior ⅓ of the tongue is supplied by ________

CN VII

12

Damage causes paralysis of intrinsic muscles of the tongue

A. CN5
B. CN7
C. CN9
D. none of the above

D

13

Which muscle pulls root of tongue upwards and backwards

A. Styloglossus
B. Hyoglossus
C. Stylopharyngeus
D. Glossopharyngeus

A

14

Superior relation to palatine tonsil:

A. Palatoglossal Arch
B. Palatopharyngeal Arch
C. Soft Palate
D. Cavity of Oropharynx

C

15

Newborns can eat and breathe at the same time because of:

A. relatively smaller tongue and jaw
B. larynx and hyoid approximates mentum
C. epiglottis rests above the soft palate during feeding
D. all of the above

C

16

Yellowish bone­like material covering the roots of teeth

A. Periodontal membrane
B. enamel
C. Dentin
D. Cementum

D

17

Stones are most likely to form in submandibular gland because:

A. Saliva has to move against gravity 
B.. Short course of duct
C. Saliva is more acidic and serous
D. Lower concentration of Calcium and Phosphate

A

18

Taste buds are most concentrated on

A. Circumvallate
B. Filiform
C. Fungiform
D. Foliate

B

19

Which is TRUE regarding taste and our taste buds?

A. The tongue map continues to be helpful in informing us regarding the different sites of taste regions in the tongue.
B. Smell plays no vital role in the taste sensation.
C. Taste substances do not have to dissolve in saliva to be detected.
D. Umami (glutamate) has recently been added to sweetness, saltiness, bitterness and sourness as the fifth quality of taste.

D

20

A mastoidectomy patient complains of loss of taste on his anterior ⅔ tongue. Which could have probably been injured?

A. Lingual nerve
B. Glossopharyngeal nerve
C. Chorda tympani
D. Tympanic nerve

C

21

All of the following occur during swallowing, except:

A. Depression of larynx
B. Elevation of soft palate

A

22

The submandibular duct

A. arises from deep part of the gland
B. opens at the palatine foramen
C. lies embedded within the gland
D. called the duct of Rivinus

A

23

Lesions found at the tip of the tongue. Where will you palpate?

A. Submandibular
B. Submental
C. Inferior deep cervical
D. Superior deep cervical

B

24

Elevates the cartilaginous portion of the auditory tube when swallowing and yawning

A. tensor veli palatini muscle
B. palatoglossal muscle
C. palatopharyngeus muscle
D. NOTA

A

25

When sleeping, every how long do we swallow?

A. 1 minute
B. 3 minutes
C. 5 minutes
D. 7 minutes

C

26

The lateral border of the oral cavity is the

A. Buccinator
B. Tonsillar pillar formed by palatoglossus muscle
C. Palatopharyngeus muscle
D. Orbicularis Oris

B

27

Sublingual gland (duct) opens at

A. Sublingual fold
B. To lingual frenulum
C. Opposite 2nd molar
D. Submental beyond mylohoid

A

28

Basic Secretory Unit of the Salivary Glands

A. Stritiated Duct
B. Intercalated Duct
C. Ductal cell
D. Acinus

D

29

Type of secretion of submandibular gland

A. serous only
B. mucous only
C. both but primarily serous
D. both but primarily mucous

C

30

How many liters of saliva do we produce every day?

A. 0.5 - 1 L
B. 1 - 1.5 liters
C. 1.5 - 2 L (ito yung answer pag kay Dr. Matubis)
D. 2 - 3 L

B

31

Dental formula per quadrant (incisors, canines, premolars and molars)

A. 2321
B. 2223
C. 2132
D. 2123
E. 2132

D

32

Tough, shiny, white outer surface of the tooth

A. Cementum
B. Dentine
C. enamel
D. crown

C

33

What is the most critical state in swallowing?

A. tongue motion
B. soft palate elevation
C. mechanical breakdown of food

A

34

Which muscle is used to move the mentum to the right?

A. right medial pterygoid
B. left medial pterygoid
C. right lateral pterygoid
D. left lateral pterygoid

A

35

Which muscle curls the upper lip upwards?

A. Zygomaticus major
B. Orbicularis oris
C. Levator labii superioris
D. levator labii superioris allaque nasii

C

36

At the apex of the terminal sulcus of the tongue, a small depression is a point of origin of which organ?

A. Hyoid bone
B. Thyroid cartilage
C. Thyroid gland
D. Cricoid cartilage

C

37

What is not a part of oral cavity?

A. Lips
B. Alveolus
C. Palate
D. Tonsils
E. Tongue

D

38

Nerve supply to angle of mandible and skin of parotid

A. auriculotemporal
B. facial
C. great auricular
D. lesser auricular

C

39

A.k.a deglutition

Swallowing

40

The slit-like space between the teeth and gingivae and the lips and cheeks

Oral vestibule

41

Opening through which the oral vestibule communicates with the exterior

Oral fissure

42

Roof of the oral cavity

Palate

43

The oral cavity communicates with what cavity posteriorly?

Oropharynx

44

A.k.a Osculation

Kissing

45

The free-edged folds of mucous membrane in the midline, extending from the vestibular gingiva to the mucosa of the upper and lower lips

Labial frenula

46

Arteries of the lips

Superior and inferior labial arteries

47

Nerves of the lips

Upper: superior labial branches of the infra-orbital nerves (V2)

Lower: inferior labial branches of the mental nerves (V3)

48

Lymphatic drainage of the lips

Upper lip and lateral parts of the lower lip: submandibular lymph nodes

Medial part of lower lip: submental lymph nodes

49

Cheek bone

Zygomatic arch

50

Artery of the cheeks

Buccal branches of maxillary artery

51

Nerves of the cheeks

Buccal branches of V3

52

Principal muscles of the cheeks

Buccinators

53

How many deciduous teeth do children have?

20

54

How many secondary teeth do adults have?

32

55

Main composition of tooth

Dentin

56

Skeletal features that display the greatest change during a lifetime

Tooth sockets of the maxilla and mandible

57

Arteries of the teeth

Superior and inferior alveolar arteries (from maxillary artery)

58

The superior and inferior alveolar arteries are from which artery?

Maxillary artery

59

Venous drainage of the teeth

Superior and inferior alveolar veins

60

First tooth that erupts

Central incisors

61

Second tooth that erupts

Lateral incisors

62

At what age do deciduous central incisors erupt?

6-8 months

63

At what age do deciduous lateral incisors erupt?

8-10 months

64

Nerve supply of the teeth

Dental plexus from the superior (V2) and inferior alveolar nerve (V3)

65

The incisive fossa is posterior to which tooth?

Central incisor

66

The greater palatine foramen is medial to which tooth?

3rd molar

67

What emerges from the greater palatine foramen?

Greater palatine vessels and nerve

68

The lesser palatine foramen is anterior the greater palatine foramen. T/F

F

It is posterior.

69

What is transmitted by the lesser palatine foramen?

Lesser palatine vessels and nerves

70

The soft palate has no bony skeleton but strengthened by the palatine aponeurosis. T/F

T

71

The uvula hangs from the free margin of the soft palate. T/F

T

72

The soft palate is joined to the tongue and pharynx by the palatopharyngeal and palatoglossal arches, respectively. T/F

F

Soft palate to tongue via palatoglossal. Soft palate to pharynx palatopharyngeal.

73

The space between the cavity of the mouth and the pharynx

Fauces

74

Pilars of the fauces

Palatoglossal and palatopharyngeal arches

75

The short constricted space that establishes the connection between the oral cavity proper and the oropharynx

Isthmus of the fauces

76

Anterior boundary of the isthmus of the fauces

Palatoglossus arch

77

Posterior boundary of the isthmus of the fauces

Palatopharyngeal arch

78

Masses of lymphoid tissue on each side of the oropharynx

Palatine tonsils

79

Because the mucosa of the hard palate is tightly bound to the underlying bone, the submucuous injections here are extremely painful. T/F

T

80

When the soft palate is elevated, the isthmus of the pharynx opens or closes?

Closes

81

The isthmus of the fauces closes when the soft palate is drawn superiorly or inferiorly?

Inferiorly

82

Tenses soft palate and opens mouth of pharyngotympanic tube during swallowing and yawning

Tensor veli palatini

83

Elevates soft palate during swallowing and yawning

Levator veli palatini

84

Elevates posterior part of tongue and draws soft palate unto tongue

Palatoglossus

85

Tenses soft palate and pulls walls of pharynx superiorly, anteriorly and medially during swallowing

Palatopharyngeus

86

Shortens uvula and pulls it superiorly

Musculus uvulae

87

Innervation of tensor veli palatini

Medial pterygoid nerve (V3) via otic ganglion

88

Innervation of most palatine muscles

Pharyngeal branch of CN X via pharyngeal plexus

89

Which palatine muscle is not innervated by the vagus?

Tensor veli palatini

90

The angle of the terminal sulcus points posteriorly to which non-functioning remnant of the proximal part of the embryonic thyroglossal duct?

Foramen cecum

91

What divides the dorsum of the tongue into a presulcal anterior part and a post-sulcal posterior part?

Terminal sulcus

92

What divides the anterior tongue into right and left parts?

Midline groove

93

Large, flat topped papillae which lie directly anterior to the terminal sulcus in a V-shaped row

Vallate papillae

94

Vallate papillae have taste buds. T/F

T

95

Small lateral folds of the lingual mucosa

Foliate papillae

96

Long and numerous papillae containing afferent nerve endings that are sensitive to touch

Filiform papillae

97

Mushroom shaped pink or red spots most numerous on the apex and margins of the tongue

Fungiform papillae

98

Which papillae do not have taste buds?

Foliate papillae

99

Lymphoid nodules on the posterior half of the tongue

Lingual tonsil

100

The midline fold that connects the inferior surface of the tongue to the floor of the mouth

Lingual frenulum

101

The frenulum allows the anterior part of the tongue to move freely. T/F

T

102

Which gland opens into the sublingual caruncles on each side of the base of the lingual frenulum?

Submandibular salivary gland

103

Group of muscles that, in general, alters the position of the tongue

Extrinsic muscles

104

Group of muscles that, in general, alters the shape of the tongue

Intrinsic muscles

105

Extrinsic muscles of the tongue

Genioglossus, hyoglossus, styloglossus, and palatoglossus

106

The extrinsic muscles of the tongue can also alter the shape of the tongue. T/F

T

107

Intrinsic muscles of the tongue

Superior and inferior longitudinal, transverse and vertical muscles

108

Intrinsic muscles of the tongue are not attached to bone. T/F

T

109

Which muscles act together to make the tongue short and thick, and to retract the protruded tongue?

Superior and inferior longitudinal muscles

110

Which muscles act together to make the tongue long and narrow?

Transverse and vertical muscles

111

Motor innervation of almost all muscles of the tongue

Hypoglossal nerve (CN XII)

112

Which muscle of the tongue does not receive motor innervation from Cn XII?

Palatoglossus

113

Motor innervation of palatoglossus

Pharyngeal plexus

114

Nerve supply of tongue for general sensation (touch and temperature)

anterior 2/3: lingual nerve (V3)
posterior 1/3: glossopharyngeal nerve (CN IX)

115

Nerve supply of tongue for special sensation (taste)

anterior 2/3, except vallate papillae: chorda tympani (CN VII)
posterior 1/3 and vallate papillae: glossopharyngeal (CN IX)

116

Nerve supply of anterior 2/3 of tongue

touch and temperature: lingual nerve (v3)
taste: chorda tympani (CN VII)

117

Nerve supply of posterior 1/3 of tongue

Glossopharyngeal nerve (CN IX)

118

Nerve supply for special sensation to a small area of the tongue just anterior to the epiglottis

Internal laryngeal nerve (CN X)

119

From which vessel does the lingual artery arise?

External carotid artery

120

Arterial supply of root of tongue

Dorsal lingual arteries

121

Arterial supply of the body of the tongue

Deep lingual arteries

122

The deep lingual arteries communicate at the root of the tongue. T/F

F

They communicate at the apex.

123

The deep lingual arteries are prevented from communicating by the lingual septum. T/F

F

It is the dorsal lingual arteries that are prevents form communicating.

124

Veins of the tongue

Dorsal lingual and deep lingual veins

125

The deep lingual veins join which vein?

Sublingual vein

126

The deep lingual veins run posteriorly with which structure to join the sublingual vein?

Lingual frenulum

127

The deep lingual, dorsal lingual and sublingual veins drain directly to the IJV, or indirectly, to first join which vein?

Lingual vein

128

Lymphatic drainage of the root of the tongue

Superior deep cervical lymph nodes

129

Lymphatic drainage of medial portion of the body of the tongue

Inferior deep cervical lymph nodes

130

Lymphatic drainage of the right and left sides of the body of the tongue

Submandibular lymph nodes

131

Lymphatic drainage of the apex and frenulum of the tongue

Submental lymph nodes

132

Approximate length of the duct of the submandibular gland

5cm

133

Arterial supply of submandibular gland

Submental arteries

134

Venous supply of the submandibular gland

Submental veins

135

The submandibular gland drains into which lymph node?

Jugulo-omohyoid node of the deep cervical lymph nodes

136

Parasympathetic innervation of the submandibular gland

Chorda tympani nerve

137

Sympathetic innervation of the submandibular gland

Superior cervical ganglion

138

Arterial supply of sublingual glands

Sublingual (from lingual artery) and submental (from facial artery) arteries

139

Presynaptic parasympathetic innervation of sublingual glans

Chorda tympani (from Cn VII) and lingual nerves

140

The common discoloration of the lips results from what phenomenon?

Decreased blood flow in capillary beds supplied by the superior and inferior labial arteries, and increased extraction of oxygen.

141

CN responsible for gag reflex

CN IX and X

142

Paralysis of which muscle results in the tendency of the tongue to fall posteriorly, causing obstruction of the airway?

Genioglossus

143

During protrusion, the paralyzed tongue deviates to which side: the paralyzed or the contralateral side?

Paralyzed side

144

Substances absorbed on the underside of the tongue are absorbed through which vessels?

Deep lingual veins

145

Lingual carcinoma in the posterior part of the tongue metastasizes to which lymph nodes?

Superior deep cervical lymph nodes

146

Lingual carcinoma in the anterior part of the tongue metastasizes to which lymph nodes?

Inferior deep cervical lymph nodes