Cranial Nerves & Torticollis! - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
Home
USMLE Articles
USMLE News
USMLE Polls
USMLE Books
USMLE Apps
Go Back   USMLE Forums > USMLE Step 1 Forum

USMLE Step 1 Forum USMLE Step 1 Discussion Forum: Let's talk about anything related to USMLE Step 1 exam


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 05-19-2010
USMLE Forums Scout
 
Steps History: 1 + CK
Posts: 88
Threads: 12
Thanked 178 Times in 49 Posts
Reputation: 188
MusculoSkeletal Cranial Nerves & Torticollis!

Which of the following cranial nerve lesions can be a differential of torticollis?

a) CN III
b) CN II
c) CN VI
d) CN IV
e) CN VII
Reply With Quote Quick reply to this message
The above post was thanked by:
atifmansha (05-21-2010), preeti617 (08-16-2011)



  #2  
Old 05-19-2010
USMLE Forums Veteran
 
Steps History: 1 + CS
Posts: 209
Threads: 34
Thanked 119 Times in 52 Posts
Reputation: 149
Default

is it D ???
Reply With Quote Quick reply to this message
  #3  
Old 05-19-2010
USMLE Forums Scout
 
Steps History: 1+CK+CS
Posts: 86
Threads: 3
Thanked 14 Times in 14 Posts
Reputation: 24
Default

is it A???
Reply With Quote Quick reply to this message
 
  #4  
Old 05-19-2010
USMLE Forums Guru
 
Steps History: ---
Posts: 487
Threads: 69
Thanked 341 Times in 163 Posts
Reputation: 361
Default its D

cranial nerve IV
Trochlear nerve palsy affects torsion. Torsion is a normal response to tilting the head sideways. The eyes automatically rotate in an equal and opposite direction, so that the orientation of the environment remains unchanged vertical things remain vertical.
Weakness of intorsion results in torsional diplopia, in which two different visual fields, tilted with respect to each other, are seen at the same time. To compensate for this, patients with trochlear nerve palsies tilt their heads to the opposite side, in order to fuse the two images into a single visual field.
Reply With Quote Quick reply to this message
The above post was thanked by:
dr_marini (09-13-2014), maryelena129 (04-29-2011), tmsid (05-19-2010)
  #5  
Old 05-20-2010
USMLE Forums Scout
 
Steps History: 1 + CK
Posts: 88
Threads: 12
Thanked 178 Times in 49 Posts
Reputation: 188
Default the answer is D,

Trochlear nerve palsy, the torticollis is a postural compensation to correct the defective intorsional ability.
Reply With Quote Quick reply to this message



Reply

Tags
Anatomy-, Neuroanatomy-, Step-1-Questions

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Location
Where you live. Leave blank if you don't want to tell.

Log-in


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
cranial nerves origins from the brain stem rasheed USMLE Step 1 Mnemonics 7 09-18-2015 01:23 PM
Cranial Nerves USMLE Question adeeb USMLE Step 1 Forum 5 06-20-2013 08:40 AM
5 Year Old with Torticollis? mosallam USMLE Step 2 CK Forum 2 04-01-2010 01:39 PM
Upper extremity Nerves and Their Roots jackat1000 USMLE Step 1 Mnemonics 1 01-18-2010 07:28 PM
Central (median) Cranial Nerve Exits rasheed USMLE Step 1 Mnemonics 1 09-19-2009 09:17 PM

Find Us on Facebook
Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2019)