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

Nose, Nasal Cavity And Paranasal Sinuses Flashcards

(56 cards)

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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?

Study These Flashcards
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:

Study These Flashcards
A

Horizontal

Inf nasal

Nasolacrimal

25
What arteries supply the medial and lateral walls of the nasal cavity
Sphenopalatine art Ant and post ethmoidal arteries Greater palatine art Sup labial art Lateral nasal art
26
The sphenopalatine art is a branch of what?
Maxillary art
27
The ant and post ethmoidal arteries are branches of what?
Ophthalmic art
28
The greater palatine art is a branch of what?
Maxillary art
29
The sup labial art is a branch of what?
Facial art
30
The lateral nasal art is a branch of what?
Facial art
31
Where do all 5 arteries supplying the septum anastomose? Where is it located?
Kiesselbach area On the ant part of the nasal septum, site of profuse bleeding
32
Plexus of veins drains into what?
The sphenopalatine Facial And ophthalmic veins
33
Nerves of the nose
Nasopalatine Greater palatine (post lateral nasal branches) Anterior ethmoidal (branches of CN V1)
34
What does the nasopalatine nerve supply
The posteroinferior half of the nasal septum
35
What do the ant ethmoidal nerves supply
Anterosuperior part of the nasal mucosa (both septum and lateral wall)
36
What are paranasal sinuses
Air filled extensions of the resp part of the nasal cavity into cranial bones
37
What cranial bones are in paranasal sinuses found in
Frontal Ethmoidal Sphenoid Maxilla
38
Location of the frontal sinuses
Between the outer and inner tables of the frontal bone, post to the superciliary arches and root of the nose
39
The frontal sinuses drain through a _____ duct, which opens into the:
Frontonasal Semilunar hiatus of the middle meatus
40
The frontal sinuses are innervated by what?
Branches of the supraorbital nerves (CN V1)
41
Several cavities located in the lateral mass of the ethmoid bone between the nasal cavity and orbit
Ethmoidal cells (sinuses)
42
Anterior ethmoidal cells drain
Directly or indirectly into the middle meatus
43
What forms the ethmoidal bulla
Middle ethmoidal cells
44
The middle ethmoidal cells open directly into the:
Middle meatus
45
The post ethmoidal cells open directly into the:
Superior meatus
46
Ethmoidal sinuses are supplied by what?
The ant and post ethmoidal branches of the nasociliary nerves (CN V1)
47
Sphenoidal sinuses occupy what?
The body of the sphenoid bone and are separated by a bony septum
48
only ___ ___ of bone separate the sphenoidal sinuses from important structures What structures?
Thin plates Optic nerves and optic chasm Pituitary gland Internal carotid arteries Cavernous sinuses
49
The sphenoidal sinuses are supples by what nerve
Post ethmoidal nerve
50
What is the largest of the paranasal sinuses
Maxillary sinuses
51
What occupies the bodies of the maxillae
Maxillary sinuses
52
Boundaries of the maxillary sinuses
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
Each maxillary sinus drains into the ____ ____ of the nasal cavity by way off the ______ ____.
Middle meatus Semilunar hiatus
54
Which sinus often needs surgical intervention? Why?
Maxillary minuses- Bc of the superior location of the opening, it is impossible for the sinus to drain completely
55
Innervation of the maxillary sinuses
Anterior, middle and post superior alveolar nerves
56
Arterial supply of the maxillary sinuses
Maxillary artery

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