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Anatomy HFF > Paranasal sinus, orbit, nasal cavity, ear 11/15/16 TEST#4 > Flashcards

Paranasal sinus, orbit, nasal cavity, ear 11/15/16 TEST#4 Flashcards

1
Q

What are the three external nasal muscles?

A
  • Procerus
  • Nasalis
  • Levator Labi superioris alaeque nasi
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2
Q

T/F

The superior middle and inferior nasal meatus lay above their respective conchae

A

False

Below

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3
Q

What are the major sources of blood for the lateral nasal cavity?

A
  • ICA-opthalmic-Ethmoidal

- ECA-maxillary-sphenopalatine-lateral posterior nasal artery

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4
Q

What are the major sources of blood for the nasal septum?

A
  • ICA-opthalmic-Ethomoidal-Anterior septal
  • ECA-maxillary sphenopalatine-posterior septal branches
  • ECA-Facial-Septal branch of superior labial
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5
Q

What innervates the anterior nasal cavity and septum?

A

-V1 anterior ethmoidal nerve

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6
Q

What innervates everything but the anterior nasal cavity and septum in the nasal cavity and septum?

A

-V2 Sphenopalatine branch

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7
Q

What is a unique innervation of the nasal cavity and septum?

A

-CN I

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8
Q

What are the four sinuses found in the head?

A
  • Frontal
  • Ethmoid air cells
  • Maxillary
  • Sphenoid
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9
Q

Which three sinuses drain together?

A
  • Frontal
  • Ethmoid
  • Maxillary
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10
Q

What do the frontal, ethmoidal, and maxillary sinuses drain through to get into the nasal cavity?

A

-Semilunar hiatus

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11
Q

What does the maxillary sinus drain through to join the frontal and ethmoidal sinuses?

A

-Maxillary hiatus

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12
Q

If you have swelling behind the ear what could be a cause of that if it is linked to something in the mouth?

A

-eustatian tube

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13
Q

Where in the nose does the frontal, maxillary, and ethmoidal sinuses drain?

A

-Middle meatus

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14
Q

Where does the lacrimal duct drain into the nasal cavity at?

A

-Inferior meatus

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15
Q

How many drainage sites do you have in the paranasal sinuses?

A

5

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16
Q

Of the 5 sites of drainage how many drain sinuses, orbit, and ear respectively?

A

3
1
1

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17
Q

What are four landmarks on the ear?

A
  • Helix
  • Lobule
  • Tragus
  • External auditory meatus
18
Q

What innervates the tragus on the ear?

A

-V3

19
Q

What innervates the helix of the ear?

A

-Lesser occipital C2

20
Q

What innervates on the actual ear?

A
  • Vagus

- Facial

21
Q

What innervates the external auditory canal and the outer part of the tympanic membrane?

A
  • CN V

- CN X

22
Q

What innervates the inside part of the tympanic membrane?

A

-CN IX

23
Q

If you clear your ears what muscles are you using?

A
  • Tensor veli palatini

- Levator veli palatini

24
Q

What transforms vibrations in the air to waves in fluid for sound?

A

-Ossicles

25
Q

What ossicle is found on the tympanic membrane?

A

-Malleus

26
Q

What ossicle pushes on the oval window?

A

-Stapes

27
Q

What innervates the cochlea and semicircular canals?

A

-CN VIII

28
Q

What are the three external ear muscles?

A
  • Auricularis Anterior
  • Auricularis Superior
  • Auricularis Posterior
29
Q

What two muscles help elevate the eyelid?

A
  • Levator palpebrae superioris muscle

- Superior tarsal muscle

30
Q

What innervate the superior tarsal muscle?

A

-Sympathetics from T1

31
Q

What are three major features of the eyeball?

A
  • Sclera/cornea
  • Choroid layer
  • Retina
32
Q

What is the function of the cornea?

A

-Refract light coming in

33
Q

What feature do you find in the choroid layer?

A
  • Ciliary muscles
  • Iris
  • Lens
  • Suspensory ligaments
34
Q

If light is traveling from a distance what happens with the ciliary muscles, suspensory ligaments, and lens?

A
  • Ciliary muscles - relaxed
  • Suspensory ligaments - Tight
  • Lens - Flat
35
Q

T/F

Light traveling from a distance needs less refraction to focus on retina

A

True

36
Q

If light is traveling from a close range what happens with the ciliary muscles, suspensory ligaments, and lens?

A
  • Ciliary muscles - Contracted
  • Suspensory ligaments - Loose
  • Lens - Ovale
37
Q

What disease occurs if you lack sympathetic innervation to the head?

A

-Horner’s syndrome

38
Q

What are the symptoms of Horner’s syndrome?

A
  • Ptosis
  • Anhydrosis
  • Miosis
39
Q

What feature do you find on the back of the retina?

A

-Fovea centralis

40
Q

T/F

You should have bilateral contraction of sphincter pupillae muscles in the pupillary reflex

A

true

41
Q

What are the superficial orbit muscles?

A
  • Orbicularis oculi
  • Corrugator supercilii
  • Depressor supercilli

Anatomy HFF (12 decks)

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