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Author Question: When positioning the 2nd digit into an oblique position, which way should the digit be rolled? ... (Read 22 times)

Garrulous

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on: Jul 17, 2018
When positioning the 2nd digit into an oblique position, which way should the digit be rolled?
 
 pronation
  laterally
  supination
  medially

Question 2

Which of the following arm positions will demonstrate the lesser tubercle of the humerus in profile medially?
 
 anatomical
  internal rotation
  external rotation
  neutral


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flannelavenger

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Reply #1 on: Jul 17, 2018
Answer to Question 1

medially

Rationale: When positioning a specific digit, position the part closest to the image receptor and keep the part parallel to the image receptor allowing the central ray to intersect perpendicular to the part. For the 2nd digit, from the pronated hand position, roll the hand toward midline or medially to keep the digit closer to the image receptor.

Answer to Question 2

internal rotation

Rationale: Rotating the arm medially until the epicondyles are perpendicular to the image receptor will position the lesser tubercle of the humerus in profile medially towards the glenohumeral joint space.


Garrulous

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Reply 2 on: Jul 17, 2018
Great answer, keep it coming :)

juliaf

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Reply 3 on: Yesterday
Wow, this really help

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