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ANAT 316 > the nose > Flashcards

the nose Flashcards

1
Q

what is the muscular tube located behind the larynx and nasal cavity?

A

pharynx

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2
Q

what passes through the pharynx?

A

air and food get redirected through this tube

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3
Q

what does the pharynx transition into?

A

esophagus

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4
Q

what does the larynx transition into?

A

trachea

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5
Q

how is the nasal cavity shaped?

A

pyramidal shape

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6
Q

what allows to form the anterior opening of the nasal cavity?

A

nostrils

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7
Q

what allows to form the posterior opening of the nasal cavity?

A

the nasopharynx via the chonanae

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8
Q

what part of the sphenoid bone allows to redirect the flow back into the nasopharynx posteriorly?

A

o Medial pterygoid plate

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9
Q

what connects the middle ear with the nasal cavity

A

o Pharyngotympanic tube in nasopharynx

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10
Q

what is the function of the Pharyngotympanic tube in nasopharynx?

A

functions to equilibrate pressure on either side of the tympanic membrane allowing for normal hearing

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11
Q

what is the anterior tip of the nose composed of?

A

cartilage
o Lateral nasal cartilage
o Alar cartilages

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12
Q

what bones form the lateral wall of the nasal cavity?

A
  • ethmoid bone
  • frontal process of the maxilla
  • vertical plate of the palatine bone
  • lacrimal bone
  • nasal bones
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13
Q

what part of the ethmoid bone contributes to form the lateral wall of the nasal cavity?

A

the superior and middle conchae curl up into the nasal cavity

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14
Q

what form the inferior concha?

A

the frontal process of the maxilla

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15
Q

what bone is in close relationship to the nasal cavity?

A

sphenoid bone

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16
Q

what bones form the floor of the nasal cavity?

A

maxilla (hard palate) 1and palatine bone

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17
Q

what bones form the roof of the nasal cavity

A
  • cribiform plate of the ethmoid bone
  • sphenoid bone
  • frontal bone
  • nasal bone
  • frontal process of the maxilla
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18
Q

where is the medial wall of the nasal cavity located?

A

nasal septum

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19
Q

what forms the superior half of the medial wall of the nasal cavity?

A

perpendicular plate of the ethmoid bone

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20
Q

what forms the inferior half of the medial wall of the nasal cavity?

A

the vomer bone

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21
Q

what cartilage forms the anterior nasal septum?

A

septal cartilage

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22
Q

what is the posterior half of the nose composed of?

A

bones

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23
Q

where does the nasal concha arise from?

A

from the lateral wall

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24
Q

what lines the nasal conchae?

A

Lined with ciliated muscosal layer

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25
Q

into how many spaces is the nasal cavity divided into due to the nasal conchae?

A

4

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26
Q

what is the function of the nasal conchae?

A

that warms & humidifies the air before it enters the lungs

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27
Q

what is the name of the spac that lies between the nasal conchae

A

nasal meatus

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28
Q

what are the respective names of the nasal conchae?

A

superior, inferior and middle concha

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29
Q

where is the Sphenoethomoidal recess located? and what is it?

A

o Small space located above the superior concha within the nasal cavity

30
Q

what is located laterally to the superior and middle conchae?

A

ethmoid air cells

31
Q

what are the Four paired air filled spaces located within the bones of the skull and that surround the nasal cavity

A

paranasal sinuses

32
Q

what is the function of the paranasal sinuses

A

produces mucous which helps moisturize the inside of the nose

33
Q

what is the fucntion of muscous in the paranasal sinuses

A

also Involved in protection against pollutants, microorganisms, dirt and dust

34
Q

what sinuses grow with age?

A

frontal and maxillary sinuses

35
Q

what sinuses are Located between the eyes in the ethmoid bone?

A

ethmoid sinuses

36
Q

what sinuses are located within the frontal bone between the eyes?

A

frontal sinuses

37
Q

where is the maxilla sinuses located and what are they closed off by?

A

within the maxilla between the eyes and get closed off by the middle conchae

38
Q

where is the sphenoid sinus located?

A

Located within the sphenoid bone posterior to the eyes

39
Q

why is pain felt at different regions when we have a sinus infections?

A

because different sinuses may be affected and are located at different places

40
Q

how is excess muscous in the paranasal sinuses drained?

A

-swalloed via connecton between oral and nasal cavities or excreted via the nose

41
Q

what sinus is responsible for the drainage of mucous in the sphenoethmoidal recess?

A

Sphenoidal sinus

42
Q

where is the Sphenoidal sinus located?

A

Located superior to the superior nasal concha

43
Q

what is responsible for the Drainage of the frontal, ethmoid and maxillary sinuses into the middle meatus

A

hiatus semilunaris

44
Q

what is the top half of the hiatus semilunaris connected to?

A

frontal sinus

45
Q

what is the bottom half of the hiatus semilunaris connected to?

A

maxillary sinus

46
Q

what is the region denotified as the Swelling of the tissues located along the superior border of the hiatus semilunaris

A

ethmoidal bulba

47
Q

what forms the ethmoidal bulla?

A

by middle air cells

48
Q

where do most of the middle air cells drain into?

A

middle meatus

49
Q

where are the middle air cells drained into?

A

superior and middle meatus

50
Q

what can enter through a small opening in the maxillary sinus

A

Inhaled air in the nasal cavity

51
Q

what sinus is in a close relationship with the teeth and the upper jaw

A

maxillary sinus

52
Q

what is also in close proximity of the maxillary sinus?

A

orbit of the eye

53
Q

what is the function of the lacrimal gland?

A

o Produces tears
o Lubricates eyes
o protects

54
Q

what happens when we blink?

A

o Eyes wash the tears and fluid over the eyeball from lateral to medial
o Fluid drains in the superior and inferior lacrimal punctae

55
Q

what collects the tears and drains them into the lacrimal sac?

A

o Lacrimal punctae

56
Q

what drains into the nasal cavity inferior to the nasal concha?

A

o nasolacrimal duct

57
Q

where does the nasolacrimal duct open?

A

o opens into the nasal cavity within the inferior meatus

58
Q

what Nerve pass through the rough of the nasal cavity and pierce through the cribifom plate and foramina

A

olfactory N

59
Q

what nerves provide general sensory innervation to the nose?

A

-ophtalmic N & maxillary N

60
Q

what nerve innervates the top half of the nasal cavity?

A

ophtalmic N

61
Q

what nerve innervates the bottom half of the nasal cavity?

A

maxillary N

62
Q

what branches arise from the maxillary N?

A

nasal branches

nasopalatine N

63
Q

what N. • Innervate the lateral wall (inferior ½)?

A

nasal branches

64
Q

where do nasal branches travel trough?

A

o Enters the nasal cavity via the sphenopalatine foramen

65
Q

what N. travels along the nasal septum in an oblique fashion and enters via the incisive canal?

A

nasopalatine N

66
Q

what A. is a branch of the maxillary A and passes through the sphenopalatine foramen?

A

sphenopalatine A

67
Q

what travels along with the nasopalatine N?

A

nasopalatine A

68
Q

Which between the nasopalatine N or A. does not exit the nose?

A

A.

69
Q

what is the site of common nose bleed?

A

Kisselbach area

70
Q

the anastamoses of which A. forms the Kisselbach area?

A

o Ethmoid A, branches of facial A & Branches of the greater palatine A

ANAT 316 (22 decks)

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