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FSMTB MBLEx Exam - Topic 7 Question 55 Discussion

Actual exam question for FSMTB's MBLEx exam
Question #: 55
Topic #: 7
[All MBLEx Questions]

Which option best muscles would contribute to wrist abduction?

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Suggested Answer: B

Wrist abduction is another term for radial deviation of the wrist. Of the muscles listed, the extensor carpi radialis is the muscle responsible for wrist abduction, which is to laterally extend the wrist away from the body while in correct anatomical position.


by Timmy at Jan 27, 2026, 02:13 PM

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Lennie
5 days ago
I remember practicing a question about wrist movements, and I think the flexor carpi radialis might also play a role in abduction.
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Roslyn
10 days ago
I think the extensor carpi radialis longus and brevis are involved in wrist abduction, but I'm not entirely sure.
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Jennie
15 days ago
Ugh, I hate these anatomy questions. I'm just going to make an educated guess and move on. Hopefully I can make up points elsewhere on the exam.
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Odette
20 days ago
Wait, which option is "best"? I'm not sure how to interpret that part of the question. I'll have to analyze the muscle functions more closely.
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Nancey
25 days ago
No problem, I've got this. The muscles that contribute to wrist abduction are the extensor carpi radialis longus and brevis. I'm confident in that answer.
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Ulysses
1 month ago
Okay, wrist abduction - that's moving the hand away from the body, right? I'm pretty sure the extensor muscles would be involved, but I'll double-check my notes to be sure.
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Kenneth
1 month ago
Hmm, this seems like a tricky anatomy question. I'll need to think through the muscles involved in wrist movement.
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