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Rad Pro 5 > Cranial And Ears > Flashcards

Cranial And Ears Flashcards

1
Q

Auricle or pinna, EAM, and tragus are considered ?

A

External ear

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2
Q

Three Auditory ossicles, epitypanic attic, and tympanic cavity, tympanic membrane are considered

A

Middle ear

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3
Q

Internal acoustic meatus and Eustachian tube are considered

A

Internal ear

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4
Q

Opening canal of the external ear ( 1inch)

A

EAM

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5
Q

Irregular shape air containing cavity between external and internal ear

A

Middle ear

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6
Q

Passageway between the middle ear and nasopharynx

A

Eustachian tube

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7
Q

Second direct communication into the middle ear occurs posteriorly to the

A

Mastoid air cell

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8
Q

Appears jagged or irregular lucent lines and lies at right angle to the axis bone

A

Linear fracture

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9
Q

“Ping pong fracture “ fragment of bone that is separated and depressed

A

Depressed fracture

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10
Q

Fracture through dense inner structure of temporal bone

A

Base skull fracture

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11
Q

Primary malignant neoplasm that spreads to distant blood and lymphatic system

A

Metastases

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12
Q

Destructive lesion irregular margin

A

Osteolytic

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13
Q

One or more tumors in bone marrow

A

Multiple myeloma

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14
Q

Enlargement of the sella turcica and erosion of the dorsum Sellae

A

Pituitary adenoma

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15
Q

Bacterial infection of the mastoid process that can destroy inner part mastoid process

A

Acute mastioditis

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16
Q

New and abnormal growth

A

Neoplasm

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17
Q

Benign usually slow growing tumor of the auditory canal ( cause hearing los, dizziness, and loss of balance )

A

Acoustic neuroma

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18
Q

Cystic mass or tumor that is most in middle ear due to congenital defect or chronic Ottis media

A

Cholesteatoma

19
Q

Growth that arises from a mucous membrane and projects into cavity

A

Polyp

20
Q

Hereditary diseases that involves irregular ossification of the auditory ossicles of the middle ear

A

Otoclerosis

21
Q

Projection that causes the petrous pyramid to be projected directly into the orbits

A

PA skull projections

22
Q

Projection where the petrous pyramid are projected just. Elle the maxillary sinus

A

Parietroacanthial ( waters method ) projection

23
Q

5 potential error

A
  1. Rotation
  2. Tilt
  3. Excessive neck flex ion
  4. Excessive neck extension
  5. Incorrect cr angle
24
Q

Necessary to visualize any existing air fluid level within cranial sinus cavities

A

Horizontal beam

25
Q

Receives vibrations of the middle ear and transmits these vibrations into the vestibule of the internal ear

A

Oval ( vestibular ) window

26
Q

Structure that houses the semicircular canals

A

Vestibule

27
Q

Membrane that allows movement of fluid within the closed ducts of the membrane labyrinth

A

Round ( cochlear) window

28
Q

Relates to the sense of direction or equilibrium

A

Semicircular canals

29
Q

Relates to the sense of hearing

A

Cochlea

30
Q

Bony chamber that houses the membranous labyrinth a series of intercommunicating ducts and sac

A

Osseous labyrinth

31
Q

Smallest of the three auditory ossicles

A

Stapes

32
Q

Delicate bones bridge the middle ear cavity to transmit sound vibrations from tympanic membrane to oval window of internal ear

A

Auditory ossicles

33
Q

Vibrations are first picked up by ______ which means “hammer”

A

Malleus

34
Q

Central ossicle, receives its name from a resemblance to an anvil

A

Incus

35
Q

Which view shows the auditory ossicles

A

Lateral view

36
Q

Blind pouch or closed duct contained in a small, canal like bony structure

A

Internal ear

37
Q

Is the opening between the epitympanc recess and mastoid portion of the temporal bone

A

Aditus

38
Q

Large chamber within the mastoid process

A

Antrum

39
Q

Serious infection of the brain

A

Encephalitis

40
Q

Thin plate bone that forms the roof of the antrum, aditus, and attic area of the tympanic cavity

A

Tegmen tympani

41
Q

5°-10° caudad angle to the OML, visualizes the petrous ridges to the mid orbital level and to visualize the IAM ( internal acoustic meatus)

A

Modified PA Caldwell

42
Q

Part of the external structure, small liplike structures, acts as a partial shield to the ear opening

A

Tragus

43
Q

Larger cavity ear drum

A

Tympanic cavity prosper

44
Q

Attached to a sharp bony projection

A

Tympanic membrane

Rad Pro 5 (4 decks)

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