clavicle fracture

Prep for USMLE Forum

» Log in | Register

Forum

Step 1

Match

Prep4USMLE Forum » USMLE Step 1 Forum » Anatomy & Neuranatomy

clavicle fracture

Author

6 Posts

sing
Forum Guru

Topics: 153
Posts: 370

11/21/04 - 05:41 AM

clavicle frature will cause elevation of the proximal fragment with depression and subluxation (underriding) of the distal fragment. traction by which of the following muscles causes subluxation (the distal fragment underrides the proximal fragment)?

a. deltoid muscle
b. pectoralis major muscle

answer?

mjl1717
Forum Hero
avatar

Topics: 955
Posts: 5,450

11/21/04 - 12:59 PM

Ill go with deltoid

___________________
Smell the coffee! "Is That an Osler move??"

sing
Forum Guru

Topics: 153
Posts: 370

11/21/04 - 04:24 PM

high yield anatomy says it is a but one question from pretest says it is b. so i am very confused now. it is anatomy, it should only have one answer. anyone good at anatomy?

Javatea
Forum Newbie

Topics: 1
Posts: 15

11/21/04 - 07:04 PM

It's a joint effort from a whole lot of muscles including the above mentioned two as major forces. smiling face

"sing" wrote:
high yield anatomy says it is a but one question from pretest says it is b. so i am very confused now. it is anatomy, it should only have one answer. anyone good at anatomy?

mdwannabe
Forum Guru

Topics: 37
Posts: 1,133

11/22/04 - 09:00 AM

Pec attaches to medial part, Deltoid to lateral...both pull down...in Fx medal part goes up...so no pec help on that side..only SCM that pulls it up. Lat part goes down under weight of the arm and pull of Deltoid.
So there is only one answer... DELTOID.

___________________
"Life not lived for others, is not worth living" Uncle Einstein
"A life is not important, except in the impact it has on other lives" -Jackie Robinson

scion
Forum Newbie

Topics: 3
Posts: 19

12/31/04 - 12:03 PM

It's deltoid muscle.

You don't have permission to post.