FSMTB MBLEx Exam - Topic 2 Question 60 Discussion

Actual exam question for FSMTB's MBLEx exam

Question #: 60
Topic #: 2

[All MBLEx Questions]

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

AAct on the shoulder

BPhasic muscles

CPostural muscles

DFast twitch muscle

Show Suggested Answer

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.

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

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Fletcher

They all act on the shoulder!

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Antonette

5 days 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.

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Gladys

10 days 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.

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Alisha

15 days 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.

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Tracey

2 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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