FSMTB MBLEx Exam - Topic 3 Question 30 Discussion

Actual exam question for FSMTB's MBLEx exam

Question #: 30
Topic #: 3

[All MBLEx Questions]

Which of the following muscle groupings are considered phasic muscles?

ATriceps brachii, deltoid

BTemporalis masseter

CQuadratus lumborum, cervical erector spinae

DGastrocnemius, soleus

Show Suggested Answer

Suggested Answer: B

Scapulohumeral rhythm exposes the function of the glenohumeral joint by testing at which degree the scapula activates during an initial abduction of the arm. At 45 degrees, the scapula should engage until the end range motion of abduction.

by Devorah at Sep 09, 2024, 03:16 AM

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Shawnta

7 months ago

Totally agree with A being phasic!

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Agustin

8 months ago

Wait, are gastrocnemius and soleus really phasic?

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Winfred

8 months ago

C is not phasic, right?

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Ciara

8 months ago

I thought temporalis and masseter were phasic too?

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Lucina

8 months ago

A is definitely phasic!

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Ma

9 months ago

I’m confused about the quadratus lumborum; I thought it was more stabilizing than phasic.

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Andree

9 months ago

I practiced a question like this before, and I feel like the gastrocnemius and soleus are more tonic muscles, right?

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Joseph

9 months ago

I remember something about the temporalis and masseter being more postural, but I'm not entirely sure.

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Mica

9 months ago

I think phasic muscles are more about movement, so maybe A with the triceps and deltoid?

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Jillian

9 months ago

Okay, I think I've got this. Phasic muscles are the ones that are more involved in dynamic movements, rather than postural support. So I'm going to go with option A - Triceps brachii and deltoid.

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Ben

9 months ago

Hmm, I'm a bit confused on this one. I know phasic muscles are different from tonic muscles, but I can't remember the exact definition. I'll have to think this through carefully.

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Claudio

9 months ago

I'm pretty sure phasic muscles are the ones that contract and relax quickly, so I'm going to go with option C - Quadratus lumborum and cervical erector spinae.

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Merri

9 months ago

I'm feeling pretty confident about this one. Phasic muscles are the ones that fatigue more quickly, so they're usually associated with limb movements. I'm going to select option D - Gastrocnemius and soleus.

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Justine

9 months ago

This one seems pretty straightforward. The definition is talking about the probability of the system meeting performance standards, so I'm going to go with Reliability.

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Diane

9 months ago

I can kind of recall something about routing and load balancing, but did we cover whether it directly relates to access for redundantly deployed services?

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Blossom

1 year ago

I bet the person who wrote this question has a really 'muscular' sense of humor. Puns and all.

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Karina

1 year ago

C) Quadratus lumborum, cervical erector spinae

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Lamar

1 year ago

B) Temporalis masseter

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Jerry

1 year ago

A) Triceps brachii, deltoid

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Markus

1 year ago

C) Quadratus lumborum and cervical erector spinae, no doubt. That's the only option that makes sense for phasic muscles.

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Tesha

1 year ago

Yes, those muscles are responsible for more dynamic movements.

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Frank

1 year ago

I think the other options are more related to tonic muscles.

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Alaine

1 year ago

I agree, Quadratus lumborum and cervical erector spinae are definitely phasic muscles.

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William

1 year ago

Hmm, this one's tricky. I'm leaning towards D) Gastrocnemius and soleus, but I could be totally off. I guess I need to brush up on my muscle groupings.

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Monte

1 year ago

Great job, you got it right with D) Gastrocnemius and soleus.

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Alayna

1 year ago

Yes, D) Gastrocnemius and soleus are considered phasic muscles.

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Bok

1 year ago

I agree, those are the phasic muscles.

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Maile

1 year ago

I think you're right, D) Gastrocnemius and soleus are phasic muscles.

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Gerald

1 year ago

D) Gastrocnemius, soleus

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Alaine

1 year ago

C) Quadratus lumborum, cervical erector spinae

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Juliana

1 year ago

B) Temporalis, masseter

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Kerrie

1 year ago

A) Triceps brachii, deltoid

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Desire

1 year ago

B) Temporalis and masseter? Really? Those are postural muscles, not phasic. I'm pretty sure the answer is C.

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Verona

1 year ago

I'm not sure, but I think C) Quadratus lumborum, cervical erector spinae are also phasic muscles because they are used for stabilization.

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Ty

1 year ago

I think the correct answer is C) Quadratus lumborum, cervical erector spinae. Phasic muscles are typically involved in dynamic movements, and those muscle groups fit the bill.

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