Ear Flashcards

(36 cards)

1
Q

auricle is the projecting

A

cartilage structure on the side of the head

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2
Q

the auricle direct the

A

air vibrations into the external auditory meatus

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3
Q

External Auditory Meatus is the tube or canal leading

A

fromt eh auricle to the tyrannic membrane

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4
Q

outer portion of the auricle is

inner portion of the auricle is

A

cartilage

bone from tympanic temporal

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5
Q

the Middle Ear includes

A

Tympanic cavity

Epitympanic cavity

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6
Q

the tympanic cavity is the space between then

A

tympanic membrane and the bony inner ear

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7
Q

the middle ear is connected to the nasal pharynx

A

by the pharyngotympanic tube

auditory tube

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8
Q

the middle ear is connected to the mastoid air cells by the

A

mastoid antrum

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9
Q

air pressure waves hitting the tympanic membrane are transformed into

A

mechanical force and amplified by ear ossicles

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10
Q

transformed into mechanical force at the

A

foot plate of the stapes in the oval window

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11
Q

mechanical force is transformed into pressure waves in a

A

liquid with in the bony labyrinth

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12
Q

order of the ear ossicles

A

malleous
incus
stapes

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13
Q

1st pharyngeal arch bones

A

malleous & incus

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14
Q

2nd pharyngeal arch bones

A

stapes

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15
Q

vibrations are transmitted to the inner ear by the

A

perilymph of the vestibule within the petrous temporal bone

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16
Q

muscles in the tympanic cavity

A

Tensor Tympani

Stapedius

17
Q

Tensor Tympani attaches to the

18
Q

Tensor Tympani is innervated by

19
Q

Tensor Tympani is derived from

A

1st pharyngeal arch

20
Q

Stapedius attaches to

21
Q

Stapedius is innervated by

22
Q

Stapedius is derived from

A

2nd pharyngeal arch

23
Q

sensory to the middle ear region and inner surface of ear drum

24
Q

Tympanic N. is from what cranial nerve

A

Glossopharyngeal N.

IX

25
branch of Tympanic N. is
Lesser Petrosl N.
26
Lesser Petrosal N. is innervation to what
parasympathetic fibers to Otic Ganglion & Parotid gland
27
Chorda Tympani N. does what
crosses inter surface of the Tympanic Membrane | Does NOT INNervation structures of the ear
28
Chorda Tympani N. is a branch of
Facial N. | VII
29
inner ear is situated in the
petrous part of the temporal bone
30
the inner ear consists of
bony labyrinth | membranous labyrith
31
the bony labyrinth has 3 parts
vestibule semicircular canals cochlea
32
Vestibule is the
central part | the round & oval window are in its lateral wall
33
Semicircular Canals is
balance posterior, superior, & lateral canals open into the post. aspect of the vestibule
34
Cochlea is the
hearing resembles a snail shell opens into the anterior part of the vestibule
35
inner ear is innervated by the
Vestibular N. and Cochlear N. | Vestibulocochlear VIII
36
stapes transmits pressure to the oval window and into the labyrinth via
perilymph