Cranial And Ears

Question 1

Auricle or pinna, EAM, and tragus are considered ?

Answer 1

External ear

Question 2

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

Answer 2

Middle ear

Question 3

Internal acoustic meatus and Eustachian tube are considered

Answer 3

Internal ear

Question 4

Opening canal of the external ear ( 1inch)

Answer 4

EAM

Question 5

Irregular shape air containing cavity between external and internal ear

Answer 5

Middle ear

Question 6

Passageway between the middle ear and nasopharynx

Answer 6

Eustachian tube

Question 7

Second direct communication into the middle ear occurs posteriorly to the

Answer 7

Mastoid air cell

Question 8

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

Answer 8

Linear fracture

Question 9

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

Answer 9

Depressed fracture

Question 10

Fracture through dense inner structure of temporal bone

Answer 10

Base skull fracture

Question 11

Primary malignant neoplasm that spreads to distant blood and lymphatic system

Answer 11

Metastases

Question 12

Destructive lesion irregular margin

Answer 12

Osteolytic

Question 13

One or more tumors in bone marrow

Answer 13

Multiple myeloma

Question 14

Enlargement of the sella turcica and erosion of the dorsum Sellae

Answer 14

Pituitary adenoma

Question 15

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

Answer 15

Acute mastioditis

Question 16

New and abnormal growth

Answer 16

Neoplasm

Question 17

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

Answer 17

Acoustic neuroma

Question 18

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

Answer 18

Cholesteatoma

Question 19

Growth that arises from a mucous membrane and projects into cavity

Answer 19

Polyp

Question 20

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

Answer 20

Otoclerosis

Question 21

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

Answer 21

PA skull projections

Question 22

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

Answer 22

Parietroacanthial ( waters method ) projection

Question 23

5 potential error

Answer 23

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

Question 24

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

Answer 24

Horizontal beam

Question 25

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

Answer 25

Oval ( vestibular ) window

Question 26

Structure that houses the semicircular canals

Answer 26

Vestibule

Question 27

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

Answer 27

Round ( cochlear) window

Question 28

Relates to the sense of direction or equilibrium

Answer 28

Semicircular canals

Question 29

Relates to the sense of hearing

Answer 29

Cochlea

Question 30

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

Answer 30

Osseous labyrinth

Question 31

Smallest of the three auditory ossicles

Answer 31

Stapes

Question 32

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

Answer 32

Auditory ossicles

Question 33

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

Answer 33

Malleus

Question 34

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

Answer 34

Incus

Question 35

Which view shows the auditory ossicles

Answer 35

Lateral view

Question 36

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

Answer 36

Internal ear

Question 37

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

Answer 37

Aditus

Question 38

Large chamber within the mastoid process

Answer 38

Antrum

Question 39

Serious infection of the brain

Answer 39

Encephalitis

Question 40

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

Answer 40

Tegmen tympani

Question 41

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

Answer 41

Modified PA Caldwell

Question 42

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

Answer 42

Tragus

Question 43

Larger cavity ear drum

Answer 43

Tympanic cavity prosper

Question 44

Attached to a sharp bony projection

Answer 44

Tympanic membrane