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Exam II Lecture VIII Flashcards

1
Q

Sensory innervation to outer ear via

A

Great auricular nerve
Auriculotemporal nerve
Lesser occipital nerve

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2
Q

Oval window is closed by

A

Footplate of stapes

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3
Q

Auditory ossicles

A

Malleus-tympanic membrane
Incus
Stapes-oval window

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4
Q

Stapedius muscle

A

Inserts onto neck of stapes
Contracts with loud sounds
Innervated by CN VII

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5
Q

Tensor tympani muscle

A

Inserts onto malleus
Contracts with loud sounds
Innervated by CN V-3

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6
Q

CN IX includes

A

Tympanic nerve

Lateral petrosal nerve

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7
Q

Tympanic nerve

A

GSA to mucosa of tympanic cavity, mastoid air cells, and auditory tube

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8
Q

Lateral petrosal nerve route

A

Leaves tympanic cavity to floor of middle cranial fossa
Descends through foramen ovale to infratemporal fossa
Ends in otic ganglion

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9
Q

Inner ear is supplied by ____ artery which is a branch of

A

Labyrinthine artery from the basilar artery

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10
Q

Cochlea

A

Resembles snail shell
Three turns
Round window

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11
Q

Inner ear contains

A

Bony/membranous labyrinth
Cochlea
Vestibule

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12
Q

Vestibule contains

A

Utricle

Saccule

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13
Q

Inner ear is supplied by what nerve

A

Vestibulocochlear nerve CN VIII

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14
Q

Semicircular canals open into

A

Utricle

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15
Q

Semicircular canals are dilated at one end to form ___ which has what function

A

Ampulla with crista ampullaris

Senses rotational acceleration

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16
Q

Utricle and saccule contain ____ and their function is

A

Macula

Senses linear acceleration and pull of gravity

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17
Q

Roof bones of orbit

A

Orbital plate of frontal bone

Lesser wings of sphenoid

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18
Q

Roof bones of orbit related to, special features

A

Related to cerebral lobes

Special feature- fossa for lacrimal gland

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19
Q

Floor bones of orbit

A

Orbital plate of maxilla
Zygomatic
Orbital process of palatine

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20
Q

Floor bones of orbit related to, special features

A

Related to maxillary sinus
Special features- Infraorbital groove/canal containing
-Infraorbital nerve and artery

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21
Q

Infraorbital nerve/artery are continuations of

A

Cranial nerve V2

Branch of external carotid artery

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22
Q

Medial wall of bones of orbit

A

Lacrimal
Frontal
Ethmoid

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23
Q

Medial wall related to

A

Ethmoid air cells
Sphenoid sinus
Nasal cavity

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24
Q

Special features medial wall

A

Fossa for lacrimal sac

Opening for nasolacrimal canal

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25
Q

Lateral wall bones of orbit

A

Zygomatic
Greater wing of sphenoid
Frontal

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26
Q

Lateral wall related to

A

Temporal fossa containing temporalis muscle

Middle cranial fossa

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27
Q

Tarsal plates and tarsal glands are part of

28
Q

Lacrimal apparatus sympathetic supply

A

From T1
To superior cervical ganglion
To lacrimal gland

29
Q

Lacrimal apparatus parasympathetic supply

A

From lacrimal nucleus via CN VII
To sphenoplatine ganglion
To lacrimal gland curtesy of CN V

30
Q

Superior orbital fissure contains

A 
CN III
CN IV
CN V-1 ophthalmic branch
CN VI
Superior ophthalmic vein
31
Q

Optic canal contains

A

CN II

Ophthalmic artery

32
Q

Anterior/posterior ethmoidal foramina exit for

A

Exit for anterior/posterior ethmoidal nerves

33
Q

Inferior orbital fissure contains

A

CN V-2

  • infraorbital nerve
  • zygomatic branch
  • orbital branches
34
Q

Inferior oblique function

A

Abducts, elevates, laterally rotates

35
Q

Superior rectus function

A

Elevates, adducts, medially rotates

36
Q

Medial rectus function

37
Q

Inferior rectus function

A

Depresses, adducts, rotates laterally

38
Q

Superior oblique function/innervation

A

Abducts, depresses, medially rotates

CN IV

39
Q

Lateral rectus function/innervation

A

Abducts

CN VI

40
Q

Levator palpebrae superioris function

A

Raises upper eyelid

41
Q

Which eye muscles are innervated by CN III

A

Inferior oblique
Superior/medial/inferior rectus
Levator palpebrae superioris

42
Q

Parasympathetic innervation to extrinsic eye muscles route

A

From Edinger-westphal nucleus
To ciliary ganglion
To sphincter pupillae muscle

43
Q

Sympathetic innervation to extrinsic eye muscles route

A

From T1
To superior cervical ganglion
To dilator pupillae muscle

44
Q

Sensory innervation of orbit via

A

Optic nerve

Ophthalmic nerve V(1)

45
Q

Ophthalmic nerve branches

A

Lacrimal nerve
Nasociliary nerve
Frontal nerve

46
Q

Nasociliary nerve branches

A

Infratrochlear

Anterior/posterior ethmoidal

47
Q

Frontal nerve branches

A

Supratrochlear

Supraorbital

48
Q

Hard palate

A

Anterior two thirds

Palatine folds of maxillae

49
Q

Soft palate

A

Posterior third

Fibromuscular fold

50
Q

Teeth formed by

A

Maxillary

Mandibular

51
Q

CN V2 includes

A

Greater and lesser palatine nerves
Nasopalatine nerves
Sensory to mucous membrane

52
Q

CN V3 includes

A

Lingual nerve-floor of mouth
Buccal nerve- vestibule/cheek
Sensory to mucous membrane

53
Q

Sympathetics to mucous membrane are same as

A

Those to the nose

54
Q

Parasympathetic route to sublingual/submandibular glands

A

From superior salivatory nucleus via CN VIII
To submandibular/sublingual ganglia
To glands

55
Q

Parasympathetic route to parotid

A

From inferior salivatory nucleus via CN IX
To otic ganglion
To gland

56
Q

Maxillary teeth innervated by

A

Superior alveolar branch CN V

57
Q

Mandibular teeth innervated by

A

Inferior alveolar branch CN V

58
Q

Anterior two thirds tongue sensory innervation

A

CN V via lingual nerve

59
Q

Posterior one third tongue sensory innervation

60
Q

Anterior two thirds tongue taste innervation

61
Q

Posterior one third tongue taste innervation

62
Q

All intrinsic and extrinsic muscles of tongue are innervated by

63
Q

Oropharynx extends from what to what, lies at what level

A

From soft palate to upper epiglottis

Lies at level of second/third cervical vertebrae

64
Q

Palatopharyngeus muscle function/innervation

A

Elevates pharynx during swallow

Vagus nerve

65
Q

Palatoglossus muscle function/innervation

A

Depresses palate

Vagus nerve

66
Q

Tensor veli palatine origin function

A

Sphenoid bone

Tenses soft palate

67
Q

Levator veli palatine origin function

A

Petrous temporal bone

Elevates soft palate

Anatomy (34 decks)

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