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FSMTB MBLEx Exam - Topic 2 Question 60 Discussion

Posted by Susy on May 13, 2026 at 06:15 PM

What do the levator scapulae, trapezius (upper fibers), biceps brachii, subscapularis and soleus all have in common?

Suggested Answer: C

ABCDE

All the muscles listed in the question are examples of postural muscles. Postural muscles are slow twitch and highly susceptible to hypertonicity in over-use and under-use scenarios.


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22 comments · newest first
CA
Candida 2 days ago
Definitely A! They influence shoulder movement.
HO
Holley 7 days ago
They all act on the shoulder.
ME
Merilyn 12 days ago
I agree, A is the best choice here!
CA
Cassi 18 days ago
I feel like B could fit too, but A is clearer.
LA
Lauran 23 days ago
True, but A is more specific.
SA
Sarina 28 days ago
But aren't some of them postural too?
KA
Kati 1 month ago
Definitely A! They all influence shoulder movement.
VE
Veta 1 month ago
I think they all act on the shoulder.
GI
Gianna 1 month ago
Fast twitch? Not sure about that one!
MA
Mary 2 months ago
I thought some were more about posture?
LA
Lai 2 months ago
Wait, are all those really phasic muscles?
LU
Luann 2 months ago
Totally agree with A!
KI
Kip 2 months ago
They all act on the shoulder!
CA
Carolynn 2 months ago
Fast twitch? Not sure about that one!
JE
Jenelle 2 months ago
I think they're more phasic than postural, right?
JU
Jules 3 months ago
Wait, are the soleus and biceps really in the same category?
RO
Roy 3 months ago
Totally agree, it's all about shoulder movement.
FL
Fletcher 3 months ago
They all act on the shoulder!
AN
Antonette 3 months ago
I’m leaning towards A) Act on the shoulder, but I could see how some might argue for B) Phasic muscles based on their roles in movement.
GL
Gladys 3 months ago
I’m a bit confused; I thought the trapezius and levator scapulae were more postural muscles, but then again, the biceps brachii is definitely more phasic.
AL
Alisha 4 months ago
I remember practicing a question about muscle functions, and I feel like B) Phasic muscles might be the right answer since some of these are more about movement.
TR
Tracey 5 months ago
I think they all act on the shoulder, but I'm not entirely sure if the soleus fits in that category.
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