Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Skull Positioning

Mastoids

QuestionAnswer
What are the views for Mastoids? Townes, Laws (R/L), Stenvers (Posterior Profile R/L), Arcelin (Anterior Profile R/L)
In the Townes mastoids, what lines are used for positiong? OML or IOML, MSP
Whatis the patients position in the Townes Mastoids? patient is supine or upright
The OML/IOML is _______ to the IR in the Townes mastoids. perpendicular 30 degrees for OML, perpendicular 37 degrees for IOML
The central ray is angle ______ degrees _____ if using the OML in the Townes mastoids. 30, caudad
How much do you angle using the IOML line in the Townes mastoids? Which direction? 37, caudad
Enters at the hairline (approx. 2 1/2" sup. to nasion)passing through the EAM's is the description of the central ray entrance for what view of the Mastoids? Townes
What is demonstrated in he Townes mastoids? Petrosa above the base of the skull, Dorsum sella (posterior clinoid process) seen witin the shadow of the foramen magnum
What is another name for the Laws view for the mastoids? axial lateral oblique
Describe the patients position in the Laws mastoids view. Patient is prone or uprigt.Patient is placed in a lateral position and skull is rotated 15 degrees towards the table (toward nose)
In the Laws view of the mastoids, what is the CR entrance? Angled 15 degrees caudal entering appprox. 2" superior and 2" posteriorto EAM (toward toes)
Where does the CR exit in the Laws mastoids? exits 1" inferior to the mastoid tip
What is mainly demonstrated in the Laws view of the mastoids? mastoid air cells
What is demonstrated in the Laws view of the mastoids? mastoid air cells (side down), opposite mastoid not superimposing byt lying inferior and slightly anterior to mastoid of interest, auricle of ear not superimposing mastoid, superimposition of internal and externl auditory meati, TMJ visible
Which side do we image in the Laws mastoids view? both
In the Stenver's view the patient is placed supine with their head rotated 45 degrees away from side being examined. T or F False - the patient is prone with their forehead,nose and zygoma restng on the table (3 point landing)
I the Stenvers view of the mastoids the MSP forms a ____ degree angle to the plane of the film. The IOML is _____ to the film. 45, parallel
Describe the CR entrance and exit in the Stenver's view of mastoids. CR is angled 12 degrees cephalad and enters approx. 3-4" posterior and 1/2" inferior to the EAM of side up; CR exits anteior to the EAM to side down
Mastoid rocess (tip) in profile below the margin of the cranium (side down), petroa of interest parallel with the plane of the film, profile of petromastoid portion closest to the IR, collimation to petrosa/mastoid region. Demon. in what view of mastoids? Stenvers
Describe the patients position in the Arcelin view of mastiods? Patient is supine, Head is rotated 45 degrees away from side being examined
IOML is parallel to plane of the IR in the Arcelin view. T or F True
CR is angled 10 degrees cauded enterng approx. 1" anterior and 3/4" superior to EAM. Which view of mastoids? Arcelin (anterior profile)
What views are done to see the tip of the mastoids best? Stenvers (posterior profile) and Arcelin (anterior profile)
What is demostrated in the Acelin view of mastoids? petromastid portion of side arthest from IR; mastoid process in profile below margin of cranium, collimation of petrosa and mastoid region
The affected side is imaged in the arcelin view of mastoids? false - we do both sides right and left
Created by: sr4095
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards