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Anatomy Practical 4 > Exercise 17 > Flashcards

Exercise 17 Flashcards

1
Q

External ear that catches sound and pushes it into the inner ear canal

A

Pinna

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2
Q

The two parts of the ear, small bumps, opposite one another

A

Tragus and antitragus

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3
Q

Extension off the bottom of the ear

A

Ear lobe

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4
Q

Ridges on the top of the ear, used to catch more sounds

A

Helix

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5
Q

Large tube between the outside of the ear and the tympanic membrane

A

External auditory meatus

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6
Q

Ear drum

A

Tympanic membrane

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7
Q

Inner ear bone, MIS, M

A

Malleus

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8
Q

Inner ear bone, MIS, I

A

Incus

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9
Q

Inner ear bone, MIS, S

A

Stapes

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10
Q

Cavity after the tympanic membrane, houses the MIS

A

Tympanic cavity

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11
Q

Where the MIS sits

A

Auditory tube

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12
Q

Division between the middle ear and the inner ear (covered by the stapes)

A

Oval Window

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13
Q

Allows vibrations to travel from the middle ear to the inner ear, sits on the cochlea

A

Round Window

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14
Q

Upper divide of the Cochlea cross-section, contains perilymph

A

Scala vestibuli

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15
Q

Lower divide of the Cochlea cross-section, contains perilymph

A

Scala Tympani

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16
Q

Divides the scala vestibuli and the cochlear duct

A

Vestibular membrane

17
Q

Flap acting on the hairs within the cochlea cross section

A

Tectorial membrane

18
Q

Base of membrane that is the separation between the cochlear duct and the scala tympani

A

Basilar Membrane

19
Q

Hair on the basilar membrane that are visible

A

Outer hair cells

20
Q

Hair cells within the basilar membrane that are not visible

A

Inner hair cells

21
Q

Carry nerve signals from the hair cells and is the large group of ganglion on the cochlear cross section

A

Spiral Ganglion

22
Q

Fibers that are on the cochlear nerve

A

Fibers of the cochlear nerve

23
Q

Liquid filling the Scala Vestibuli and the Scala Tympani

A

Perilymph

24
Q

Liquid filling the cochlear duct, inside the cochlear cross section

A

Endolymph

25
Q

The bony outer wall of the inner ear, consists of the vestibule, semicircular ducts, and cochlea

A

Bony Labyrinth

26
Q

The membranous inner wall of the inner ear, within the vestibule, semicircular ducts, and cochlea

A

Membranous Labyrinth

27
Q

Ends of the semicircular ducts

A

Ampulla

28
Q

Closest structure inside the inner ear to the cochlea

A

Saccule

29
Q

Proximal to the saccule but further from the cochlea than the saccule

A

Utricle

30
Q

Comes of the Vestibule, which is located where all the semicircular ducts come together

A

Vestibular Nerve

Anatomy Practical 4 (4 decks)

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