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Human Form & Function > oral cavity > Flashcards

oral cavity Flashcards

1
Q

oral cavity borders

A

lips, cheeks, palatoglossal folds, palate, mylohyoid m.

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2
Q

vestibule is the…

A

space between the lips/cheeks and the teeth

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3
Q

oral cavity proper is the…

A

space between teeth

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4
Q
A

palatoglossal arch

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5
Q

external features of the oral cavity (4)

A
  1. Lips – thin less pigmented epithelium, superficial vascular supply
    * No sweat/sebaceous glands
    * Labial glands are present at border of lips and oral mucosa
  2. Angle of the mouth = commissure of the lips
  3. Philtrum – midline depression between nose and upper lip
  4. Vermillion border – transition between lips and skin
    * Site of infections, cold sores, cheilitis (various inflammation)
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6
Q

mucolabial fold vs mucobuccal fold

A

mucolabial: teeth and lips
mucobuccal: teeth and cheeks

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7
Q

what features are within the cheeks?

A

buccal submucosa with glands
buccinator
parotid papilla (opposite 2nd molar)

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8
Q
A
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9
Q
A
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10
Q

sublingual caruncles

A

openings for sublingual and submandibular gland ducts, on either side of lingual frenulum
*associated with glands

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11
Q

sublingual folds

A

tubular ducts for sublingual gland – empty saliva here below tongue
*associated with glands

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12
Q

submandibular ducts aka

A

Wharton’s duct

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13
Q

gingiva is a _____ layer covering alveolar bone

A

mucousal

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14
Q

fuaces that separate oral cavity from pharynx

A

palatoglossal arch
palatine tonsils
palatopharyngeal arch

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15
Q
A

green: palatoglossal arch
red: palatine tonsils
yellow: palatopharyngeal arch

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16
Q

vasculature of the fauces

A
  • Descending palatine artery (maxillary a.)
  • Ascending palatine a. (br of facial a.)
  • Tonsillar br. (facial a.)
  • Ascending pharyngeal a. (br of ECA)
  • Dorsal lingual a. (br of lingual a.)
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17
Q

innervation of the fauces

A
  • CN V-2 - Lesser palatine n. sensory and innervates
    the tonsil
  • CN VII – parasympathetic Gr. Petrosal
    fibers = glands
  • Sympathetic – Deep Petrosal fibers
  • CN IX – Sensory (posterior)
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18
Q

what is the landmark for anesthetic injection for the IA block?

A

pterygomandibular raphe

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19
Q

What muscle attachments is pterygomandibular raphe made up of?

A

posterior attachment for buccinator
anterior attachment for pharyngeal constrictor

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20
Q

What innervates the 1st molar
MB Cusp USUALLY?

A

middle superior alveolar nerve

*posterior superior alveolar nerve to the palatal and distobuccal roots

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21
Q

Foliate papilla are located

A

on sides of tongue

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22
Q

fungiform papilla are located on the

A

dorsum

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23
Q

filiform papilla are located on the

A

central/dorsum

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24
Q

circumvallate papilla are located

A

in the medial plane

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25
Q

muscles of the oral cavity (7)

A

mylohyoid
geniohyoid
stylohyoid
hyoglossus
styloglossus
palatoglossus
geniorglossus

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26
Q
A

mylohyoid muscle

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27
Q

mylohyoid muscle function

A

elevate hyoid and tongue during swallowing

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28
Q

geniohyoid muscle function

A

elevate hyoid and tongue during swallowing

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29
Q

geniohyoid muscle origin and insertion

A

inferior mental spine to body of hyoid bone

30
Q

stylohyoid muscle function

A

elevate hyoid during swallowing

31
Q
A

geniohyoid muscle

32
Q
A

stylohyoid muscle

33
Q

extrinsic vs intrinsic tongue muscle definition

A

Extrinsic – from somewhere else to the tongue

Intrinsic – entirely contained in the tongue

34
Q

extrinsic tongue muscles (4)

A

hyoglossus
styloglossus
palatoglossus
genioglossus

35
Q

hyoglossus muscle origin and insertion

A

greater horn of hyoid to the lateral tongue

36
Q

hyoglossus muscle function

A

retract and depress the tongue

37
Q
A

hyoglossus muscle

38
Q

styloglossus muscle origin and insertion

A

styloid process to the lateral tongue

39
Q

styloglossus muscle function

A

retract and elevate the tongue

40
Q
A

styloglossus

41
Q

palatoglossus muscle function

A

elevate the posterior tongue

42
Q
A

palatoglossus muscle

43
Q

genioglossus muscle function

A

protrude or depress the tongue
elevate or depress the apex of tongue

44
Q

genioglossus muscle origin and insertion

A

genial tubercle to the meshwork of muscles

45
Q

intrinsic tongue muscles (4)

A

superior longitudinal muscle
vertical muscle
transverse muscle
inferior longitudinal muscle

46
Q

functions of intrinsic tongue muscles

A

Superior and inferior longitudinal – shorten
tongue, curl up or down

Transverse – narrows and lengthens tongue

Vertical – flattens and widens tongue

47
Q

innervation
mylohyoid:
geniohyoid:
stylohyoid:
hyoglossus:
styloglossus:
palatoglossus:
genioglossus:

A

mylohyoid: CN V-3
geniohyoid: Cervical 1 through CN XII
stylohyoid: CN VII
hyoglossus: CN XII
styloglossus: CN XII
palatoglossus: CN X
genioglossus: CN XII

48
Q

motor tongue innervation via

A

CN XII
*except palatoglossus m. -> CN X

49
Q

hard/soft palate blood supple

A
50
Q
A
51
Q
A
52
Q
A
53
Q
A
54
Q
A
55
Q
A
56
Q

artery of the tongue

A

lingual artery

57
Q

branches of the lingual artery

A

dorsal lingual
sublingual
deep

58
Q

dorsal lingual artery emerges…

A

posterior to hyoglossus

59
Q

dorsal lingual artery supplies the

A

dorsum, posterior 1/3 of tongue, mucosa of palatoglossal arch, tonsil, epiglottis, and soft palate

60
Q

sublingual artery supplies the

A

floor of oral cavity, mucosa, sublingual gland, surrounding muscles

61
Q

deep lingual artery supplies the

A

inferior surface of tongue up to tip

62
Q

oral cavity lymphoid tissue drains into the

A

submandibular nodes (lingual)

63
Q

the oral cavity lymphoid tissue monitors…

A

air water and food as its taken in

64
Q

the lingual/palatine tonsils drain into

A

submandibular nodes

65
Q
A
66
Q

innervation of tongue muscles

A

CN XII (except palatoglossis m. -> CN X)

67
Q

innervation of palate muscles

A

CN X (except tensor veli palatini -> CN V-3)

68
Q

innervation of pharyngeal muscles

A

CN X (except stylopharyngeus m. -> CN IX)

69
Q

innervation of laryngeal muscles

A

CN X (all recurrent except cricothyroid m.)

70
Q

Innervation
Tongue muscles:
Palate muscles:
Pharyngeal muscles:
Laryngeal muscles:

A

Tongue muscles: CN XII
(except palatoglossus m. -> CN X)

Palate muscles: CN X
(except tensor veli palatini -> CN V-3)

Pharyngeal muscles: CN X
(except stylopharyngeus m. -> CN IX)

Laryngeal muscles: CN X
(all recurrent except Cricothyroid m.)

71
Q

routes of infection from the oral cavity

A

Human Form & Function (49 decks)

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