Q7 > CCE 5 Final > Flashcards

CCE 5 Final Flashcards

(16 cards)

Study These Flashcards
1
Q

Parts of the external ear

A
  1. Auricle/Pinna - movable cartilage and skin
  2. External Auditory canal - terminates at tympanic membrane / eardrum
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2
Q

Outer 1/3rd External auditory canal

A

Cartilage

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3
Q

Inner 2/3rds of the external auditory canal

A

Bone

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4
Q

The external auditory canal is lined with glands that secrete _____ that lubricates and protects the ear

A

Cerumen

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5
Q

What does cerumen do when chewing and talking

A

Migrates outward

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6
Q

Parts and function of the Tympanic membrane

A
  1. Separated external and middle ear
  2. Transulcent, pearly gray
  3. Cone of light in anterioinferior corner
  4. Malleus - umbo and manubrium and short process seen
  5. Pars tensa - the rest of the TM
  6. Annulus - outer fibrous ring
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7
Q

Middle ear - Function and parts

A
  1. Air filled cavity in temporal bone
  2. Malleus, in sum and stapes
  3. Oval window - at end of stapes
  4. Round window
  5. Eustachian tube
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8
Q

What is the Eustachian tube?

A
  1. Connects middle ear with nasopharynx
  2. Opens with swallowing and yawning
  3. Allows equalization of pressure with altitude changes
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9
Q

Parts of the inner ear

A
  1. Vestibule
  2. Semicircular canals
  3. Cochlea
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10
Q

What is tinnitus? (6)

A
  1. Phantom sound
  2. Ringing, crackling, buzzing
  3. Louder with decreased environmental noise
  4. Cerumen, OM
  5. Ototoxic drugs - aspirin and naproxen
  6. Severe tinnitus can cause depression or anxiety
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11
Q

What is vertigo?

A
  1. Rotational spinning with dysfunction of labyrinth
  2. Objective vertigo - room is spinning
  3. Subjective vertigo - self is spinning
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12
Q

What are the 2 types of conduction of sound and describe them.

A
  1. Air Conduction
    A. Sound waves travel through external ear and tympanic membrane then vibrate that travels to the Oval window of the cochlea via ossicles
  2. Bone Conduction
    A. Vibration of the skull bones. Travels directly to inner ear/cochlea bypassing external and middle ear
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13
Q

What is Pure tone audiometery

A
  1. Assesses ability to hear tones at different frequencies
  2. Quantitative measure of hearing
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14
Q

What are the 2 types of hearing loos?

A
  1. Conductive
  2. Sensorineural
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15
Q

What is conductive hearing loss?

A
  1. Problem of external or middle ear
  2. Impacted cerumen
  3. Foreign bodies
  4. Perforated tympanic membrane
  5. Pus or serum in middle ear
  6. Otosclerosis
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16
Q

Sensorineural hearing loss ?

Study These Flashcards
A
  1. Inner ear, CN VIII, or cerebral cortex
  2. Presbycusis
  3. Ototoxic drugs
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