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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
Greater palatine artery
Branch off of ECA
26
Sphenopalatine artery
terminal branch of maxillary artery ECA
27
Frontal sinus
located between inner and outer tables of frontal bone; drains to semilunar hiatus in middle meatus
28
Ethmoidal sinus = ethmoidal air cells
3 regions Anterior - drain into semilunar hiatus in middle meatus Middle - ethmoidal bulla Posterior - superior meatus
29
Sphenoidal sinus
drains into sphenoethmoidal recess
30
Sphenoidal sinus is close to what structures?
Optic nerves and chiasm Pituitary gland ICA Cavernous sinus
31
Maxillary sinus medial wall
Shared with nasal cavity
32
Maxillary sinus roof
Floor of orbit
33
Maxillary sinus floor
Roof of oral cavity
34
Maxillary sinus drainage port?
maxillary ostium -> semilunar hiatus
35
Oral vesitbule
space between teeth and mucosal lining of lips and cheeks
36
Oral cavity proper
space between upper and lower dental arches
37
Buccinator attachments
Alveolar process of maxilla and mandible and pterygomandibular raphe
38
Pterygomandibular raphe
thickening of the buccopharyngeal fascia; also origin of superior pharyngeal constrictor
39
Buccinator innervation
Buccal branch of facial nerve
40
Parotid gland
opens into oral vestibule by way of parotid papilla opposite 2nd molar; pierces the buccinator muscle
41
Palate
formed by hard palate (bone) and soft palate (muscle)
42
Hard palate
palatine process of maxilla + horizontal plate of palatine bone
43
Foramina associated with hard palate
Incisive canal/fossa Greater palatine foramen Lesser palatine foramen
44
Greater palatine formamen
Greater palatine artery/nerve
45
Lesser palatine forament
Lesser palatine artery/nerve
46
Incisive canal
Greater palatine artery and Nasopalatine n.
47
Muscles that make up the soft palate
``` Palatoglossus Palatopharyngeus Tensor veli palatini Levator veli palatini Musculus uvulae ```
48
Both levator veli and tensor veli palatini insert where?
Palatine aponeurosis
49
Levator veli palatini originates from where?
Temporal bone
50
Tensor veli palatini originates from where?
Scaphoid fossa of sphenoid bone and auditory tube
51
Tonsils
aggregates of lymphoid tissue
52
3 locations of tonsils
palatine, lingual and pharyngeal
53
Palatine tonsils
between palatoglossus and palatopharyngeus muscles
54
Lingual tonsils
dorsal surface of posterior tongue
55
Pharyngeal tonsils
roof of nasal pharynx = adenoids
56
Sulcus terminalis
division between posterior 2/3 and anterior 1/3 of tongue
57
Circumvallate papillae
structures containing the taste buds near the sulcus terminalis
58
Filiform papilla
rough; keratinized direct food
59
Fungiform papilla
contain taste buds
60
Lingual frenulum
midline fold of mucous membrane on ventral surface of tongue
61
Sublingual papilla
on either side of frenulum and opening of duct from submandibular glands
62
Extrinsic tongue muscles
Genioglossus Hyoglossus Styloglossus
63
Genioglossus Origin
Superior mental spine
64
Genioglossus Insertion
Superior fibers - tip of tongue Middle fibers - dorsum of tongue Inferior fibers - into body of hyoid bone
65
Hyoglossus Origin
Upper surface of greater horn and lesser horn of hyoid bone
66
Hyoglossus insertion
Lateral aspect of tongue
67
Styloglossus Origin
Anterior aspect of styloid process
68
Styloglossus Insertion
Lateral aspect of tongue
69
Styloglossus action
retracts tongue
70
Hyoglossus action
Depress and retract tongue
71
Genioglossus action
depress and protrude tongue
72
Palatoglossus action
elevates posterior part of tongue
73
Palatoglossus innervation
CN X
74
Genioglossus, hyoglossus and styloglossus
CN XII
75
Intrinsic muscle of tongue
Change shape of tongue; CNXII
76
Extrinsic muscles of tongue
Change position of tongue
77
Mylohyoid muscle
floor of oral cavity; mylohyoid line of mandible to median raphe and hyoid bone
78
Mylohyoid muscle innervation
N. to mylohyoid off of inferior alveolar nerve (V3)
79
Geniohyoid muscle
Inferior mental spines of mandible to body of hyoid bone
80
Geniohyoid innervation
C1
81
Lingual nerve and submandibular duct
Lingual nerve travels lower than submandibular duct
82
Hypoglossal nerve
Can be found between mylohyoid and hyoglossus nerve

BU Anatomy (15 decks)

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