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Anatomy > Nasal Cavity and Paranasal Sinuses > Flashcards

Nasal Cavity and Paranasal Sinuses Flashcards

1
Q

anterior portion of the nasal cavity

A

Nasal vestibule

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2
Q

Posterior portion of the nasal cavity

A

Choanae

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3
Q

Divides the nasal cavities

A

septum

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4
Q

Floor of the nasal cavity

A

Palatine process of the maxilla and horizonal plate of the palatine bone

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5
Q

Roof of the nasal cavity

A

Cribriform plate (middle), nasal spine (anterior), nasal bone (anterior), body of sphenoid bone (posterior)

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6
Q

Medial wall of nasal cavity

A

Perpendicular plate of ethmoid (superior), vomer (posterior), nasal crests of maxilla/palatine bones, nasal spine, vomeronasal cartilage (anterior)

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7
Q

Lateral wall of nasal cavity

A

Inferior/middle/superior turbinates

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8
Q

What bone are the middle and superior turbinates part of?

A

Ethmoid

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9
Q

What is a turbinate called when covered in mucosa?

A

Conchae

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10
Q

Elevated portion of the lateral wall that surrounds/separates each conchae

A

Meatus

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11
Q

Space between the superior conchae and the lateral wall

A

Sphenoethmoidal recess

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12
Q

What does the inferior meatus contain?

A

nasolacrimal duct (anterior portion)

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13
Q

What does the middle meatus contain?

A

Middle ethmoidal air cells (make up ethmoidal bulla), semilunar hiatus, frontal sinus drainage, maxillary sinus

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14
Q

What does the superior meatus contain?

A

Posterior ethmoidal air cells,sphenopalatine foramen

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15
Q

What opens into the sphenoethmoidal recess?

A

Sphenoid sinus

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16
Q

Contents of sphenopalatine foramen

A

Nasopalatine nerve, posterior superior lateral nasal nerve, sphenopalatine artery/vein

17
Q

Contents of incisive canal

A

Nasopalatine nerve, greater palatine artery

18
Q

Contents of cribriform plate

A

Filaments of olfactory nerve, posterior ethmoidal artery, posterior ethmoidal nerve

19
Q

Contents of nasal slit

A

Anterior ethmoidal artery/vein/nerve

20
Q

Contents of foramen cecum

A

Superior sagittal sinus (frequently absent)

21
Q

Contents of palatine canal

A

Posterior inferior lateral nasal nerves (off of greater palatine via V2)

22
Q

Bones that contribute to the superior/external nose

A

nasal bones, frontal process of maxillae, nasal portion of the frontal bone

23
Q

Branches to nasal area via ECA

A

Sphenopalatine artery, greater palatine artery, superior labial artery, lateral nasal artery

24
Q

Branches off of sphenopalatine artery

A

Posterior lateral nasal branch, posterior septal branch

25
Q

Branches off of ICA to the nasal area

A

Posterior/anterior ethmoidal artery

26
Q

Anastomose of nasal arteries in the anterior portion of the septal wall

A

Kiesselbach’s area

27
Q

Branches of V2 that innervate the nasal cavity

A

Nasopalatine nerve, superior lateral nasal nerve, inferior lateral nasal nerve

28
Q

Branches of V1 that innervate the nasal cavity

A

Posterior ethmoidal nerve, anterior ethmoidal nerve (turns into the internal nasal nerve as it runs over the anterior septum)

29
Q

Branches of V2 that innervate external nose

A

Infratrochlear nerve, external nasal branch of anterior ethmoidal nerve

30
Q

Branch of V1 that innervates the external nose

A

Nasal branches of infraorbital nerve

31
Q

Yellowish, quarter-size patch of sensory epithelium situated near the middle of the roof of the nasal cavity

A

Olfactory epithelium

32
Q

Innervates the autonomics of the frontal nerve

A

Supraorbital nerve via frontal of V1

33
Q

Innervates the autonomics of the ethmoidal air cells

A

Orbital branches via pterygopalatine ganglion

34
Q

Opening of the duct in the maxillary sinus

A

Maxillary ostium

35
Q

Innervates the mucosa of the maxillary sinus

A

Superior alveolar nerve

36
Q

Most common site for sinusitis

A

Maxillary sinus

Anatomy (35 decks)

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