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HEAD AND NECK ANATOMY > NOSE > Flashcards

NOSE Flashcards

1
Q

what are the functions of the nose?

A
  1. warms and moistens air
  2. traps dirt
  3. provides air for respiration
  4. olfaction (smell)
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2
Q

what is the choanae?

A

opening between the nasal cavity and the nasopharynx

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3
Q

what is the alae?

A

the lower lateral surface of the external nose

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4
Q

what makes up the roof of the nasal cavity?

A

cribriform plate of the ethmoid bone

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5
Q

what makes up the nasal septum?

A

superiorly- perpendicular plate of the ethmoid bone
inferiorly- vomer
anteriorly- septal cartilage

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6
Q

what makes up the lateral wall of the nasal cavity?

A

ethmoid bone (superior and middle concha), maxilla, palatine and sphenoid

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7
Q

what makes up the floor of the nasal cavity?

A

hard palate which is made of the palatine process of the maxilla anteriorly and the palatine bone posteriorly

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8
Q

what is the area above the superior concha called?

A

spheno-ethmoid recess

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9
Q

what opens into the spheno-ethmoid recess?

A

the sphenoidal air cells

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10
Q

what bone are the superior and middle concha part of?

A

the ethmoid bone (inferior concha is a bone itself)

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11
Q

what are the areas below the concha called?

A

inferior, middle and superior meatus respectively

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12
Q

what enters into the superior meatus?

A

posterior ethmoid air cells

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13
Q

what enters into the inferior meatus?

A

nasolacrimal duct

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14
Q

what enters into the middle meatus?

A

maxillary sinus, frontal sinus, middle and anterior ethmoid air cells

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15
Q

what are the air-filled extensions of the nasal cavity?

A

paranasal sinuses

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16
Q

what is the role of paranasal sinuses?

A

increase resonance of speech and reduce weight of the head

17
Q

what is the innervation of the frontal air sinus?

A

V1

18
Q

what is the innervation of the maxillary sinus?

A

V2

19
Q

what is the innervation of the sphenoid sinus?

A

V1 and 2

20
Q

what is the innervation of the ethmoidal air cell?

A

V1

21
Q

what are the borders of the nasopharynx?

A

sits above the soft palate which closes it off during swallowing- the roof consists of the basilar part of the occipital bone and the sphenoid bone

22
Q

what are the collections of lymphoid tissue beneath the epithelium of the roof and posterior wall of the nasopharynx which are prominent in young but may regress in adulthood?

A

adenoids

23
Q

what is the connection between the middle ear and the nasopharynx?

A

the eustachian tube

24
Q

what is the role of the salpingopharyngeaus muscle?

A

opens the eustachian tube when we swallow to equalise the pressure between the ear and the pharynx

HEAD AND NECK ANATOMY (7 decks)

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