11/12 Anatomy of the Nasal Cavity Flashcards Preview

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Flashcards in 11/12 Anatomy of the Nasal Cavity Deck (42)
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1
Q

The major structures of the superior middle and inferior _________ Nasal Cavity and Nasopharynx

A
2
Q

The bones that come out from the sides of the nasal cavity to form the concha.

A

Turbinate Bones

3
Q

The spaces below each concha

A

The superior middle and inferior meatus

4
Q

What purpose does the Superior, middle, and inferior meatus each serve?

A

They serve to condition the air by humidify, warm, and swirl around.

5
Q

What is the nerve that does general sensation to the Nasal cavity?

A

Maxillary branch of the trigeminal nerve (V-2)

Gives pain Temp touch etc.

6
Q

Describe the course of the Maxillary branch of the trigeminal nerve in the nasal cavity

A

V-2 sends branches to the nasal septem, lateral nasal wall and the hard palate and the lingual surface of the gums.

7
Q

Describe the nasal cavity from the nostril back to the nasopharynx (with the concha still in place.

A
8
Q

What’s located under the middle concha, in the middle meatus?

A

From the anterior to the posterior: Infundibulum opeing of frontonasal duct taht drains the frontal sinus and anterior ethmoid cells; the Opening of the middle ethmoidal cells onto bulla ehmoidalis; and the opening of maxillary sinus in floow of pheno-ehmoidal recess. then in the back is the hiatus semilunar!

in summary: Frontonasal duct (frontal sinus/anter. ethmoid); bulla ethmoidalis (middle ethmoid); Spheno-ethmoidal recess ( maxillary sinus); hiatus semilunar!

9
Q

What if I cut away the superior concha bone and explored the surperior meatus…

A

Find the opeing to posterior ethmoidal clls into the lateral wall of superior meatus.

10
Q

What if I explored just above the superior concha of the nasal cavity, what opening could I find?

A

the Opening of shenoidal sinus into sheno-ethmoidal recess

11
Q

What if a horrible nasal bacteria decided to grow in the inferior nasal meatus, what duct could it infect?

A

the nasolacrimal duct!

12
Q

what If i lost the greater petrosal branch due to a horrible case of shingles…or somethin…

A

wouldn’t be able to cry!!!! because the lacrimal gland is innervated by the greater petrosal. Also wouldn’t be able to close your eye against resistance etc.

13
Q

An infection of the lacrimal gland may also infect what nearby structure?

A

the nasal cavity….because the tears drain into the lacrimal canaliculi, then the lacrimal sac, and into the nasolacrimal duct in the inferior nasal meatus

14
Q

The road of a tear….into the nose

A

Inf. Sup. Puncta; Lacrimal canaliculi, lacrimal sac; nasolacrimal duct; inferior meatus, upper lip, mouth etc! heheh

15
Q

what is a paranasal sinus?

A

Hollow chambers named for the bones in which they reside.

16
Q

The sinuses of the face…

A

Frontal sinus;

Ethmoid sinus (air cells)

Maxillary sinus

sphenoid sinus

17
Q

There seems to be an infection just above my eye…which sinus could it be?

A

The Frontal Sinus…paired set just above the eyebrows

18
Q

an infection has traveled from teh middle meatus into some honey comb looking sinuses…where is the infection?

A

The ethmoid sinus or air cells, either the ant. middle. or post.

19
Q

Now that pesty sinus infection has traveled directly below the eyes…which sinus set is it in?

A

the Maxillaary sinus…paired set of two just below the eyes.

20
Q

The sinus infection has traveled up above the sup. concha of the nasal cavity and invaded a sinus post. the nasal cavity…where is it?

A

In the sphenoid sinus!

21
Q

That nasal infection is causing a lot of pain and I’m ready to knock out the nerves that innervate it…what nerves to I target

A

The trigeminal nerve that is providing GS to the sinuses and specifically V-1 and V-2

22
Q

My attending just hit me with a zinger….name this tube opening behind the nasal cavity at the top of the nasopharynx….with three different names!

A

The opening of:

the pharyngotympanic tube

Auditory tube

Eustacian tube

bamm!

23
Q

I had a killer sore throat and now my ears and the spot behind my ears is very tender…where has the infection traveled?

A

Up the pharyngotympanic tube, into the middle ear, into the mastoid antrium and into the mastoid cells.

24
Q

The three important structures of the oral cavity…as per Dr. M

A

Palate

Tongue

Teeth

25
Q

the muscle that courses form the palate to the tounge

A

the palatoglossal muscle

26
Q

the structure that is off-center away from the leasion if there is a problem with cranial nerve 10

A

The palatoglossal arch in the back of the oral cavity (and the ovula that is attached to it)

27
Q

the muscle from the palate to the pharnx…behind the palatoglossal m.

A

The palatopharyngeal muscle that makes the palatopharyngeal arch.

28
Q

located between the two arches at the back of the oral cavity

A

Palatine tonsil is located between the palatoglossal and palatopharyngeal arch

29
Q

I just got a hunk of musaca caught in my (back of the oral cavity) what nerve is telling me about it?

A

the greater and lesser palatine nerves (CN V-2) provide innervation to the hard and soft palate, lingual surface of gums!

30
Q

CN V-2 comes out of the trigeminal ganglion and chugga-choos where?

What kind of train is it?

A

Through the Foramen rotundum, and then branches

a branch goes strait anterior to pop out as the infraorbital nerve to innervate the skin below the eye and side of nose, and top of teeth root.

A part dives down to form the greater and lesser palatine nerves to innervate the hard and soft palate

It is a general sensory train headed form the teeth and skin back to the trigeminal nerve

31
Q

The muscle that lifts the palate:

A

the Levator veli palatinin muscle!

32
Q

The motor innervation to the muscle that lifts the palate

A

the levator veli palatini muscle is innervated by CN X

33
Q

The muscle and cranial nerve that tenses the palate

A

Cranial nerve 3 and the Tensor veli palatini muscle (CN X)

34
Q

The sensory to the anterior 2/3 of the tounge

A

SS - CN VII via the lingual then via the corda tympani back to the

GS CN V-3

35
Q

The sensation to the post. 1/3 of tounge

A

GS- CN IX

SS - CN IX

36
Q

The muscle that moves the tounge

A

the Genioglossus muscle

37
Q

The nerve track of the muscle of the toung

A

CN XII From the medulla, out he hypoglossal canal, through the submandibular triangle and innervates all of the tounge muscles

38
Q

Types of teeth

A

Molars: yellow; Premolars: orange; Canines: blue; Incisors: green.

39
Q

Teeth for grinding

A

Molars

40
Q

The sensory innervation of the teeth

A

Maxillary teeth by V-2:

Anterior superior aviolar nerve

Middle superior aviolar nerve

and posterior aviolar nerve.

for the front middle and rear teeth.

41
Q

The sensory innervation to the bottom teeth

A

the Mandibular teeth innervated by CN V-3

Inferior Alveolar nerve that courses down thorugh the mandible and exits as the mental nerve!

42
Q
A