Nose anatomy Flashcards

(36 cards)

1
Q

what nerve controls nose muscles

A

Facial nerve- cranial nerve 7

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2
Q

what bones make up the lateral wall of the nasal cavity

A

nasal, maxilla, lacrimal, ethmoid, palatine, med pterygoid plate of spenoid

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3
Q

what bones make up the roof

A

nasal, frontal, ethmoid, sphenoid

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4
Q

what are the two divisions of the trigeminal nerve -Cr5

A

ophthalmic - V1
maxillary- v2

sensory and parasympathetic fibres

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5
Q

the anterior superior part of the lateral wall is supplied by which nerve?

A

V1 ophthalmic

ant ethmoidal nerve

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6
Q

what nerve supplies the posterior inferior part of the lateral wall?

A

V2 maxillary

greater palatine

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7
Q

what nerve supplies the post inf part of the medial wall/ septum

A

V2- nasopalatine nerve

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8
Q

what artery accompanies the maxillary nerve

A

branches of the maxillary branch of the external carotid

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9
Q

what arteries accompany the ophthalmic nerve

A

branches of the ophthalmic branch of the internal carotid artery

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10
Q

what nerve passes through the incisive canal in the hard palate

A

nasopalatine nerve, supplies the anterior palate

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11
Q

what is the arterial supply of the ant sup part of the lateral wall

A

ant post ethmoidal branches of the ophthalmic artery plus the facial artery

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12
Q

what is the arterial supply of the post inf part of the lateral wall

A

greater palatine and sphenopalatine branches of the maxillary artery

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13
Q

what does a dehiscent palatine canal lead to

A

severe epistaxis

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14
Q

what artery accompanies the nasopalatine nerve

A

sphenopalatine artery

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15
Q

arterial supply of the septum

A

septal branches of the maxillary and ophthalmic arteries

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16
Q

what ares is predisposed to epistaxis

A

little’s or kisselbach’s

17
Q

what anastomosis exists in little’s area?

A

ant ethmoidal
greater palatine
sphenopalatine
labial branches of facial

18
Q

where does the nasal vein enter the nasal cavity

A

foramen caecum

19
Q

where are nasal veins connected to

A

cavernous sinus in the cranial cavity

20
Q

where does the maxillary sinus enter

A

hiatus semilunaris

21
Q

where does the frontal sinus enter

A

frontonasal duct and infundibulum to hiatus semilunaris

22
Q

where do the posterior ethmoidal cells enter

A

superior meatus

23
Q

where does the sphenoid sinus enter

A

sphenoethmoidal recess

24
Q

where does the nasolacimal duct enter

A

inferior meatus

25
what are the frontal, sphenoid and ethmoid sinuses supplied by
supra orbital and ethmoidal branches of the ophthalmic nerve and ophthalmic artery
26
what is the maxillary sinus supplied by
maxillary nerve and maxillary artery
27
where does nasal cavity lymph drain to?
submandibular nodes retropharyngeal nodes upper deep cervical nodes jugulodigastric node
28
where is the opening of the auditory tube
nasopharynx
29
what is Waldeyer's ring?
a protective tonsillar ring around the openings of the resp and GI tracts
30
where are the adenoid/ pharyngeal tonsils found?
roof and post wall of the nasopharynx
31
where are the tubal tonsils found
around the opening of the auditory tube
32
what are the frontal, ethmoid and sphenoid sinuses supplied by
supra orbital and ethmoidal branches of the ophthalmic nerve and artery
33
what type of nerves are they
sensory and parasympathetic
34
what does the posterior choanae enter into
the nasopharynx
35
what can lead to middle ear infections
enlargement of the tubal tonsils
36
what can swelling of the pharyngeal tonsil lead to
mouth breathing due to airway obstruction