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Head And Neck > Nose, Nasal Cavity And Paranasal Sinuses > Flashcards

Nose, Nasal Cavity And Paranasal Sinuses Flashcards

1
Q

What divides the right and left cavities of the nose

A

Nasal septum

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2
Q

Each nasal cavity is divisible into what 2 areas?

A

Olfactory area

Respiratory area

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3
Q

Function of the nasal cavities

A

Olfaction (smelling)

Respiration (breathing)

Filtration of dust

Humidification of inspired air

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4
Q

The dorsum of the nose extends from the ____ to the ____

A

Root (superior angle)

Apex (tip) of the nose

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5
Q

Piriform shaped anterior nasal apertures

A

Nares

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6
Q

Nares are bound laterally by the _____ of the nose and are separated from each other by the ____ ___

A

Alae (wings)

Nasal septum

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7
Q

The bony part of the nose consists of:

A

Nasal bones

Frontal processes of the maxillae

Nasal part of the frontal bone and its nasal spine

Bony part of the nasal septum

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8
Q

Cartilaginous part of the most consists of:

A

2 lateral cartilages

2 alar cartilages

Septal cartilage

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9
Q

Nasal cavities open posteriorly into the ______ through the ____

A

Nasopharynx

Choanae

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10
Q

The nasal cavity is lined with _____, except:

A

Mucosa

The vestibule of the nose (lined with skin)

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11
Q

The respiratory mucosa covers:

The olfactory mucosa covers:

A

Inferior 2/3rds

Superior 1/3rd

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12
Q

Boundaries of the nasal cavity:

A

Roof: frontonasal, ethmoidal and sphenoidal bones

Floor: palatine process of the maxilla & Horizontal plate of the palatine bone

Medial wall: nasal septum (perpendicular plate of the ethmoid, vomer, septal cartilage)

Lateral wall: Ethmoidal labyrinth

  • Perpendicular plate of the palatine bone
  • medial surfaces of the lacrimal bones and maxillae
  • inf concha
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13
Q

3 nasal elevations that project inferiorly

A

Nasal conchae

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14
Q

Each nasal conchae form a roof for a:

A

Meatus

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15
Q

4 passages of the nasal cavity:

A

Spheno-ethmoidal recess

Sup nasal meatus

Middle nasal meatus

Inf nasal meatus

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16
Q

The sphenoid-ethmoidal recess is _____ to the superior concha. It receives the:

A

Superoposterir

Opening of the sphenoidal sinus

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17
Q

The superior nasal meatus is a ____ passage below the ______ concha. It receives:

A

Narrow

Superior

Posterior ethmoidal sinuses

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18
Q

Which nasal meatus is longer and deeper?

A

Middle nasal meatus

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19
Q

The middle nasal meatus receives what sinuses?

A

Frontal sinus

Anterior and middle ethmoidal sinuses

Maxillary sinus

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20
Q

The frontal sinus, via the ______ duct opens in the ant. Part of the:

A

Frontonasal

Semilunar hiatus

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21
Q

A round elevation located superior to the semilunar hiatus

A

Ethmoidal bulla

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22
Q

The anterior and middle ethmoidal sinuses open through the:

A

Ethmoidal bulla

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23
Q

Where does the maxillary sinus open?

A

Into the post end of the semilunar hiatus

24
Q

The inf nasal meatus is a ___ passage, inferolateral to the _____ nasal concha. It receives:

A

Horizontal

Inf nasal

Nasolacrimal

25
Q

What arteries supply the medial and lateral walls of the nasal cavity

A

Sphenopalatine art

Ant and post ethmoidal arteries

Greater palatine art

Sup labial art

Lateral nasal art

26
Q

The sphenopalatine art is a branch of what?

A

Maxillary art

27
Q

The ant and post ethmoidal arteries are branches of what?

A

Ophthalmic art

28
Q

The greater palatine art is a branch of what?

A

Maxillary art

29
Q

The sup labial art is a branch of what?

A

Facial art

30
Q

The lateral nasal art is a branch of what?

A

Facial art

31
Q

Where do all 5 arteries supplying the septum anastomose?

Where is it located?

A

Kiesselbach area

On the ant part of the nasal septum, site of profuse bleeding

32
Q

Plexus of veins drains into what?

A

The sphenopalatine

Facial

And ophthalmic veins

33
Q

Nerves of the nose

A

Nasopalatine

Greater palatine (post lateral nasal branches)

Anterior ethmoidal (branches of CN V1)

34
Q

What does the nasopalatine nerve supply

A

The posteroinferior half of the nasal septum

35
Q

What do the ant ethmoidal nerves supply

A

Anterosuperior part of the nasal mucosa (both septum and lateral wall)

36
Q

What are paranasal sinuses

A

Air filled extensions of the resp part of the nasal cavity into cranial bones

37
Q

What cranial bones are in paranasal sinuses found in

A

Frontal

Ethmoidal

Sphenoid

Maxilla

38
Q

Location of the frontal sinuses

A

Between the outer and inner tables of the frontal bone, post to the superciliary arches and root of the nose

39
Q

The frontal sinuses drain through a _____ duct, which opens into the:

A

Frontonasal

Semilunar hiatus of the middle meatus

40
Q

The frontal sinuses are innervated by what?

A

Branches of the supraorbital nerves (CN V1)

41
Q

Several cavities located in the lateral mass of the ethmoid bone between the nasal cavity and orbit

A

Ethmoidal cells (sinuses)

42
Q

Anterior ethmoidal cells drain

A

Directly or indirectly into the middle meatus

43
Q

What forms the ethmoidal bulla

A

Middle ethmoidal cells

44
Q

The middle ethmoidal cells open directly into the:

A

Middle meatus

45
Q

The post ethmoidal cells open directly into the:

A

Superior meatus

46
Q

Ethmoidal sinuses are supplied by what?

A

The ant and post ethmoidal branches of the nasociliary nerves (CN V1)

47
Q

Sphenoidal sinuses occupy what?

A

The body of the sphenoid bone and are separated by a bony septum

48
Q

only ___ ___ of bone separate the sphenoidal sinuses from important structures

What structures?

A

Thin plates

Optic nerves and optic chasm

Pituitary gland

Internal carotid arteries

Cavernous sinuses

49
Q

The sphenoidal sinuses are supples by what nerve

A

Post ethmoidal nerve

50
Q

What is the largest of the paranasal sinuses

A

Maxillary sinuses

51
Q

What occupies the bodies of the maxillae

A

Maxillary sinuses

52
Q

Boundaries of the maxillary sinuses

A

Apex- extends toward the zygomatic bone

Base- inf part of the lateral wall of the nasal cavity

Roof- floor of orbit

Floor- alveolar part of the maxilla

53
Q

Each maxillary sinus drains into the ____ ____ of the nasal cavity by way off the ______ ____.

A

Middle meatus

Semilunar hiatus

54
Q

Which sinus often needs surgical intervention? Why?

A

Maxillary minuses-

Bc of the superior location of the opening, it is impossible for the sinus to drain completely

55
Q

Innervation of the maxillary sinuses

A

Anterior, middle and post superior alveolar nerves

56
Q

Arterial supply of the maxillary sinuses

A

Maxillary artery

Head And Neck (16 decks)

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