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BU Anatomy > Head and Neck: Oral and Nasal Cavities > Flashcards

Head and Neck: Oral and Nasal Cavities Flashcards

1
Q

What seprates nasal cavity from anterior cranial fossa?

A

Cribriform plate of ethmoid bone

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2
Q

Which air sinus sits lateral to the upper half of the lateral wall of the nasal cavity?

A

Ethmoidal air sinus

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3
Q

What space is lateral to ethmoid air sinus?

A

The medial wall of the orbit

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4
Q

Lateral to lower half of lateral nasal wall?

A

Maxillary air sinus

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5
Q

What space sits below the floor of the nasal cavity?

A

Oral cavity

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6
Q

What structure separates the nasal from oral cavity?

A

Hard palate

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7
Q

Nasal cavity is continuous with what structure posteriorly?

A

Nasopharynx

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8
Q

What structures contribute to the roof of the nasal cavity?

A 
Nasal cartilage
Nasal bones
Nasal spine of frontal bone
Cribriform plate of ethmoid bone 
Inf./Ant. portions of body of sphenoid bone
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9
Q

Which structures contribute to floor of nasal cavity?

A

Palatine processes of maxilla

Horizontal plates of palatine bones

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10
Q

Structures of medial wall of nasal cavity? (3)

A

Septal cartilage
Vomer
Perpendicular (vertical) plate of ethmoid bone

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11
Q

Skeletal structures of lateral wall of nasal cavity (3)?

A

Maxilla
Ethmoid bone - sup. and middle conchae
Inferior concha

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12
Q

Sphenoethmoidal recess

A

located directly posterior to superior concha and anterior to sphenoid bone

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13
Q

Meatus

A

In nasal cavity all meatuses are found just inferior to concha

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14
Q

Drainage of sphenoid sinus?

A

Sphenoethmoidal recess

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15
Q

Drainage of posterior ethmoidal sinuses?

A

Superior meatus

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16
Q

Drainage of anterior ethmoidal sinus?

A

Hiatus semilunaris in middle meatus

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17
Q

Drainage of frontal sinus?

A

Hiatus semilunaris in middle meatus

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18
Q

Drainage of maxillary sinsus?

A

Hiatus semilunaris in middle meatus

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19
Q

Hiatus semilunaris

A

found in middle meatus; drains the anterior ethmoidal, maxillary and frontal sinus

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20
Q

Drainage of middle ethmoidal sinus?

A

Bulla ethmoidalis

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21
Q

Bulla ethmoidalis

A

Swelling on superior border of hiatus semilunaris

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22
Q

Drainage of nasolacrimal duct?

A

Inferior meatus

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23
Q

Anterior and Posterior ethmoidal arteries

A

Come off of opthalmic artery - ICA

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24
Q

Lateral nasal branches of facial artery

A

Branches of ECA

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25
Q

Greater palatine artery

A

Branch off of ECA

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26
Q

Sphenopalatine artery

A

terminal branch of maxillary artery ECA

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27
Q

Frontal sinus

A

located between inner and outer tables of frontal bone; drains to semilunar hiatus in middle meatus

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28
Q

Ethmoidal sinus = ethmoidal air cells

A

3 regions
Anterior - drain into semilunar hiatus in middle meatus

Middle - ethmoidal bulla

Posterior - superior meatus

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29
Q

Sphenoidal sinus

A

drains into sphenoethmoidal recess

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30
Q

Sphenoidal sinus is close to what structures?

A

Optic nerves and chiasm
Pituitary gland
ICA
Cavernous sinus

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31
Q

Maxillary sinus medial wall

A

Shared with nasal cavity

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32
Q

Maxillary sinus roof

A

Floor of orbit

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33
Q

Maxillary sinus floor

A

Roof of oral cavity

34
Q

Maxillary sinus drainage port?

A

maxillary ostium -> semilunar hiatus

35
Q

Oral vesitbule

A

space between teeth and mucosal lining of lips and cheeks

36
Q

Oral cavity proper

A

space between upper and lower dental arches

37
Q

Buccinator attachments

A

Alveolar process of maxilla and mandible and pterygomandibular raphe

38
Q

Pterygomandibular raphe

A

thickening of the buccopharyngeal fascia; also origin of superior pharyngeal constrictor

39
Q

Buccinator innervation

A

Buccal branch of facial nerve

40
Q

Parotid gland

A

opens into oral vestibule by way of parotid papilla opposite 2nd molar; pierces the buccinator muscle

41
Q

Palate

A

formed by hard palate (bone) and soft palate (muscle)

42
Q

Hard palate

A

palatine process of maxilla + horizontal plate of palatine bone

43
Q

Foramina associated with hard palate

A

Incisive canal/fossa
Greater palatine foramen
Lesser palatine foramen

44
Q

Greater palatine formamen

A

Greater palatine artery/nerve

45
Q

Lesser palatine forament

A

Lesser palatine artery/nerve

46
Q

Incisive canal

A

Greater palatine artery and Nasopalatine n.

47
Q

Muscles that make up the soft palate

A 
Palatoglossus
Palatopharyngeus 
Tensor veli palatini
Levator veli palatini
Musculus uvulae
48
Q

Both levator veli and tensor veli palatini insert where?

A

Palatine aponeurosis

49
Q

Levator veli palatini originates from where?

A

Temporal bone

50
Q

Tensor veli palatini originates from where?

A

Scaphoid fossa of sphenoid bone and auditory tube

51
Q

Tonsils

A

aggregates of lymphoid tissue

52
Q

3 locations of tonsils

A

palatine, lingual and pharyngeal

53
Q

Palatine tonsils

A

between palatoglossus and palatopharyngeus muscles

54
Q

Lingual tonsils

A

dorsal surface of posterior tongue

55
Q

Pharyngeal tonsils

A

roof of nasal pharynx = adenoids

56
Q

Sulcus terminalis

A

division between posterior 2/3 and anterior 1/3 of tongue

57
Q

Circumvallate papillae

A

structures containing the taste buds near the sulcus terminalis

58
Q

Filiform papilla

A

rough; keratinized direct food

59
Q

Fungiform papilla

A

contain taste buds

60
Q

Lingual frenulum

A

midline fold of mucous membrane on ventral surface of tongue

61
Q

Sublingual papilla

A

on either side of frenulum and opening of duct from submandibular glands

62
Q

Extrinsic tongue muscles

A

Genioglossus
Hyoglossus
Styloglossus

63
Q

Genioglossus Origin

A

Superior mental spine

64
Q

Genioglossus Insertion

A

Superior fibers - tip of tongue
Middle fibers - dorsum of tongue
Inferior fibers - into body of hyoid bone

65
Q

Hyoglossus Origin

A

Upper surface of greater horn and lesser horn of hyoid bone

66
Q

Hyoglossus insertion

A

Lateral aspect of tongue

67
Q

Styloglossus Origin

A

Anterior aspect of styloid process

68
Q

Styloglossus Insertion

A

Lateral aspect of tongue

69
Q

Styloglossus action

A

retracts tongue

70
Q

Hyoglossus action

A

Depress and retract tongue

71
Q

Genioglossus action

A

depress and protrude tongue

72
Q

Palatoglossus action

A

elevates posterior part of tongue

73
Q

Palatoglossus innervation

A

CN X

74
Q

Genioglossus, hyoglossus and styloglossus

A

CN XII

75
Q

Intrinsic muscle of tongue

A

Change shape of tongue; CNXII

76
Q

Extrinsic muscles of tongue

A

Change position of tongue

77
Q

Mylohyoid muscle

A

floor of oral cavity; mylohyoid line of mandible to median raphe and hyoid bone

78
Q

Mylohyoid muscle innervation

A

N. to mylohyoid off of inferior alveolar nerve (V3)

79
Q

Geniohyoid muscle

A

Inferior mental spines of mandible to body of hyoid bone

80
Q

Geniohyoid innervation

A

C1

81
Q

Lingual nerve and submandibular duct

A

Lingual nerve travels lower than submandibular duct

82
Q

Hypoglossal nerve

A

Can be found between mylohyoid and hyoglossus nerve

BU Anatomy (15 decks)

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