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Head and Neck > Lecture 12- Nasal and Oral Cavities > Flashcards

Lecture 12- Nasal and Oral Cavities Flashcards

1
Q

What structure separates the anterior cranial fossa above the nasal cavity?

A

Cribiform plate of the ethmoid bone

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2
Q

What is just lateral to the upper half of the nasal cavity? lower half?

A

upper- ethmoid air sinus

lower- maxillary air sinus

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3
Q

What structure separates the nasal cavity from the oral cavity below?

A

hard palate (palatine process of the maxilla and horizontal plates of the palatine bone)

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4
Q

What are the 3 components of the nasal septum?

A
  1. Septal cartilage
  2. Perpendicular (vertical) plate of the ethmoid bone
  3. Vomer
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5
Q

What bone provides the superior and middle concha? inferior concha?

A

Superior and middle concha are part of the ethmoid bone

Inferior concha is its own bone

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6
Q

What are the four passages of the nasal cavity created by the superior, middle and inferior nasal concha (turbinates)?

A
  1. Sphenoethmoidal reces
  2. Superior meatus
  3. Middle meatus
  4. Inferior meatus
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7
Q

Where does the sphenoid sinus drain?

A

into the sphenoethmoidal recess

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8
Q

What drains into the hiatus semilunaris? Where is it located?

A
  • found in middle meatus

- drains anterior ethmoidal sinus, frontal and maxillary sinuses

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9
Q

Where do the maxillary sinuses drain?

A

into the hiatus semilunaris

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10
Q

Where is the bulla ethmoidalis? What does it drain?

A
  • swelling on the superior border of the hiatus semilunaris

- drains middle ethmoidal sinuses

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11
Q

Where does the nasolacrimal duct drain?

A

into the inferior meatus of the nasal cavity

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12
Q

Name 5 arterial branches that supply to nasal cavity.

A
  • Anterior and posterior ethmoidal arteries
  • lateral nasal branches of the facial artery
  • greater palatine artery
  • sphenopalatine artery
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13
Q

What 4 bones house paranasal sinuses?

A

Frontal
Ethmoid
Sphenoid
Maxilla

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14
Q

Where do the frontal sinuses drain?

A

semilunar hiatus (hiatus semilunaris) in the middle nasal meatus

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15
Q

How do the anterior ethmoidal cells drain into the middle nasal meatus?

A

via the frontonasal duct

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16
Q

How do the middle ethmoidal cells drain into the middle meatus?

A

through the ethmoidal bulla on the superior border of the semilunar hiatus

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17
Q

How do the posterior ethmoidal cells drain?

A

directly into the superior meatus

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18
Q

How do the sphenoid sinuses drain?

A

into the sphenoethmoidal recess

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19
Q

What does the roof of the maxillary sinus form?

A

floor of the orbit

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20
Q

What does the medial wall of the maxillary sinus form?

A

lateral wall of the nasal cavity

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21
Q

What does the floor of the maxillary sinus form?

A

the alveolar part of the maxilla of the oral cavity

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22
Q

Where do the maxillary sinuses drain?

A

into the maxillary ostium then into the middle nasal meatus through the semilunar hiatus

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23
Q

What complication can occur during removal of palatal teeth?

A

displacement of root fragment into the maxillary sinus

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24
Q

What is the name for the space between the teeth and the mucosal lining of the lips and cheeks?

A

vestibule

25
Q

What are the two attachments of the buccinator muscle?

A

pterygomandibular raphe and alveolar processes of the maxilla and mandible

26
Q

Where does the parotid duct open in the oral cavity?

A

opposite the crown of the 2nd molar

27
Q

What are the 2 bones that form the hard palate?

A
  1. horizontal plate of the palatine bone

2. palatine process of the maxilla

28
Q

What are the 3 pairs of foramina that open on the hard palate?

A

Greater palatine foramen
Lesser palatine foramen
Incisive Canal (fossa)

29
Q

Names the 5 muscles of the soft palate.

A
  1. Levator veli palatini
  2. Tensor veli palatini
  3. Palatoglossus
  4. Palatopharyngeus
  5. Musculus uvulae
30
Q

Which muscle is responsible for elevating the posterior 1/3 of the tongue?

A

palatoglossus

31
Q

What muscle functions to elevate the pharynx and larynx?

A

palatopharyngeus

32
Q

Which is more anterior in the oral cavity the palatoglossus or the palatopharyngeus?

A

palatoglossus

33
Q

What are the 3 sets of tonsils?

A

palatine
pharyngeal (single adenoid)
lingual

34
Q

What is also called the adenoids?

A

pharyngeal tonsils

35
Q

What divides the tongue into the anterior 2/3 and the posterior 1/3?

A

sulcus terminalis

36
Q

What papillae types contain taste buds?

A

circumvallate papillae

fungiform papillae

37
Q

What taste budsc direct food?

A

filiform papillae

38
Q

What is the name for the midline fold of mucous membrane that runs on the under surface of the tongue?

A

lingual frenulum

39
Q

Where are the sublingual papilla located? What empties there?

A

located on either side of the lingual frenum

submandibular gland empties there

40
Q

What 2 muscles retract the tongue?

A

hyoglossus

styloglossus

41
Q

What muscle protrudes the tongue?

A

genioglossus

42
Q

What two muscles depress the tongue?

A

genioflossus

hyoglossus

43
Q

List the 4 intrinsic muscles of the tongue.

A
  1. superior longitudinal
  2. inferior longitiudinal
  3. transvers
  4. vertical
44
Q

What is the main artery of the tongue? Where does it branch from?

A

the lingual artery, a branch of the external carotid artery

45
Q

What are the 3 sub-branches of the lingual artery?

A

dorsal lingual artery
deep lingual artery
sublingual branch

46
Q

What provides the blood supply to the palatine tonsil?

A

dorsal lingual artery

47
Q

What artery supplies the body of the tongue?

A

deep lingual artery

48
Q

What artery supplies the floor of the mouth?

A

sublingual branch

49
Q

Name the 3 veins that drain the tongue?

A

deep lingual, sublingual, dorsal lingual

50
Q

What is the lymphatic drainage of the posterior 1/3 of the tongue?

A

Jugulo-omyhyoid group

51
Q

What is the lymph drainage of the tip of the tongue?

A

submental group

52
Q

What is the lymph drainage of the side of the tongue?

A

submandibular group

53
Q

What is the lymphatic drainage of the central part of the tongue?

A

jugulo-omohyoid group

54
Q

What nerve provide generation sensation to the anterior 2/3 of the tongue (GVA)?

A

CN V

55
Q

What nerve provides taste fibers to anterior 2/3 of the tongue (SA)?

A

Chorda tympani via the lingual nerve

56
Q

Which nerve provide sensation and taste (GVA and SA)) fibers to the posterior 1/3 of the tongue?

A

CN IX- Glossopharyngeal

57
Q

What two muscles form the floor of the mouth?

A

mylohyoid

geniohyoid

58
Q

What innervates the geniohyoid muscle?

A

C1

59
Q

Which duct crosses the lingual nerve in the mouth?

A

submandibular duct

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