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SP2017 Anatomy Exam#2 > Lecture 9- Nasal Cavity and Paranasal Sinuses > Flashcards

Lecture 9- Nasal Cavity and Paranasal Sinuses Flashcards

1
Q

At the tip of the nose is…. cartilage which is u-shaped and mobile

A

major alar

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2
Q

There is a …. plate of cartilage on either side of a midline septal…

A
  • lateral

- cartilage

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3
Q

Bony contributions to the nasal cavity are from… and…

These form the …

A
  • nasalis/nasal bone and frontal bone

- anterior roof

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4
Q

The central roof of the nasal cavity is formed by…

A
  • ethmoid

- cribiform plate

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5
Q

The posterior roof of the nasal cavity is formed by…

A

-sphenoid

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6
Q

The medial wall of the nasal cavity anteriorly is made up of…
Posteriorly it is made up by…

A
  • septal cartilage

- perpendicular plate of ethmoid bone

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7
Q

The posterior-inferior aspect of the medial wall of the nasal cavity is made up by the… which forms a … with the maxillary and palatine bones

A
  • Vomer

- nasal crest

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8
Q

The floor of the nasal cavity is the made up of…

A

3/4 maxilla

1/4 palatine

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9
Q

The… separate the nasal cavity from nasopharynx

A

choanae

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10
Q

Superior and middle concha are components of the… bone but the inferior concha is an … bone that articulates with the…

A
  • ethmoid
  • independent
  • maxilla
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11
Q

Above the superior nasal concha is… and below it is…

Each concha has a… below it

A
  • spheno-ethmoidal recess
  • superior meatus
  • meatus
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12
Q

The… sinus is found in frontal bone. lateral to midline and drains via…. into infundibulum which drains into… which is a feature of the…

A
  • frontal
  • frontonasal duct
  • Hiatus semilunaris
  • middle meatus
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13
Q

The frontal sinus ultimately drains anterior to…

A

ethmoidal bulla

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14
Q

The… sinus is made up of 3 walls and appears pyramidal in coronal section

A

maxillary

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15
Q

The superior wall of the maxillary sinus separates it from the…

A

orbit

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16
Q

The medial wall of the maxillary sinus separates it from the…

A

nasal cavity

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17
Q

The lateral wall of the maxillary sinus separates it from….

A

infratemporal fossa

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18
Q

The maxillary sinus drains… because of how much of the day we spend laying down at night

A

superiorly

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19
Q

The maxillary sinus drains into the … which is located in the…

A
  • maxillary ostium

- middle meatus

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20
Q

The roots of the teeth can project into… and may be covered by…

A
  • maxillary sinus

- mucoperiosteum

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21
Q

What can happen during tooth extraction?

A

Tear membrane and create fistula

22
Q

The ethmoidal air cells are located in the… and are continuous with the nasal mucosa and drain into the nasal cavity

A

lateral labryinths

23
Q

The… duct is also found in the lateral labryinths of the ethmoid bone anteriorly

A

frontonasal

24
Q

The… is going to contain the frontonasal canal as well as openings for anterior ethmoidal cells

A

semilunaris hiatus

25
Q

Middle ethmoidal air cells open into the….

A

bulla

26
Q

Posterior ethmoidal air cells open into the…

A

superior meatus (cant see in lab)

27
Q

The sella turcica is located in the…

A

middle cranial fossa

28
Q

The sphenoidal sinus is between nasal cavity and….

A

pituitary gland (anterior/middle cranial fossa)

29
Q

The sphenoid sinus opens into … sinus which is superior in the nasal cavity

A

spehnoethmoidal recess

30
Q

What are puncta

A

raised points of opening (openings of lacrimal canaliculi)

31
Q

Nasal Cavity: What is the arterial supply of the upper anterior septum and lateral wall?

A

Anterior ethmoidal branches (which are from opthalmic)

32
Q

Nasal Cavity: What is the arterial supply of the upper posterior septum and lateral wall?

A

Posterior ethmoidal branches (which are from opthalmic)

33
Q

Nasal Cavity: What is the arterial supply of the lower septum and lateral wall?

A

Sphenopalatine branches

34
Q

The nasal cavity arteries anastomose at the… which is a significant area for nosebleeds

A

kissil box

35
Q

The anterior ethmoidal artery of the lateral nasal wall is going to give off a branch called… which is going to supply the tip of the nose

A

external nasal artery

36
Q

The sphenopalatine artery is a major supply for the nasal cavity (a terminal branch of….) and gives off posterior nasal lateral branches and posterior septal branches of sphenopalatine

A

maxillary

37
Q

The greater palatine artery supplies the…

A

septum

38
Q

What are the facial artery contributions of the nasal cavity?

A

alar branch of lateral nasal artery and septal branch from nasal artery from superior labial artery

39
Q

Venous drainage of nasal cavity… (3)

A

superior ophtalmic v
pterygoid plexus
facial vein

40
Q

The superior 1/3 of the nasal cavity is … epithelium and the inferior 2/3 is… epithelium

A
  • olfactory

- respiratory

41
Q

The special sensory nerve of the nasal cavity is the… and the olfactory epithelium is located on both the… and…

A
  • olfactory CNI

- lateral nasal wall and septum

42
Q

The tip of nose is innervated by … which comes from…

A
  • external branch of anterior ethmoidal nerve/

- nasociliary n.

43
Q

The nasal cavity has innervation from…. , … and….

A

CNI
CNV1
CNV2

44
Q

CNV1 also supplies the septum as the….branch of…

A
  • septal

- anterior ethmoidal n.

45
Q

What are the CNV2 branches that supply nasal cavity?

A
  1. Infraorbital n.
  2. Nasopalatine n.
  3. A.S. Alv. n.
  4. P.S.L. Nasal nn.
  5. P.I.L. Nasal nn.
46
Q

Infraorbital nasal branches are going to travel with…. artery from facial artery

A

lateral nasal

47
Q

Nasopalatine nerve is the predominant nerve on the… and ti will extend through the… canal to anastomose with the … nerve

A
  • septum (medial nasal wall)
  • incisive
  • greater palatine nerve
48
Q

Nasopalatine is not on the… nasal wall. Nasopalatine is a branch of…

A
  • lateral

- CNV2

49
Q

Branches of … provide general sensation to the paranasal sinuses

A

maxillary (CNV2)

50
Q

… branches which are from… provide parasympathetic fibers to paranasal sinuses (travel on branches of V2)

A
  • Greater petrosal

- CNVII

51
Q

… branches, from…, provide sympathetic fibers to paranasal sinuses (travel on branches of V2)

A

Deep petrosal

T1

SP2017 Anatomy Exam#2 (14 decks)

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