FSMTB MBLEx Exam - Topic 3 Question 43 Discussion

Actual exam question for FSMTB's MBLEx exam

Question #: 43
Topic #: 3

[All MBLEx Questions]

Which of the following muscles of the head and neck are not firing during eccentric extension?

ASternocleidomastoid

BLonqus coll

CAnterior scalenes

DLevator scapula

Show Suggested Answer

Suggested Answer: D

An eccentric extension of the neck requires the flexors to fire during contraction, causing the extensor muscle levator scapulae to relax.

by Hannah at Mar 24, 2025, 09:36 PM

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Darrel

7 months ago

Wait, isn't the Sternocleidomastoid also not firing?

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Viola

7 months ago

Agreed, Levator scapula is usually inactive in that position.

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Tawna

7 months ago

I think it's definitely the Levator scapula.

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Noelia

7 months ago

Really? I thought the Anterior scalenes were involved.

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Elenore

7 months ago

No way, the Lonqus coll isn't even a real muscle!

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Lucy

8 months ago

I feel like the longus colli is often overlooked in these types of questions, but I can't remember its role in eccentric extension.

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Sharika

8 months ago

The levator scapulae seems like it might not be firing, but I could be mixing it up with another muscle.

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Marion

8 months ago

I remember practicing a question about the anterior scalenes, but I can't recall if they fire during eccentric extension.

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Arlette

8 months ago

I think the sternocleidomastoid is definitely involved in neck movements, but I'm not sure about the others.

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Val

9 months ago

I've got a strategy - I'll eliminate the options I'm sure about first, then make my best guess.

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Loreen

9 months ago

I'm a bit confused by the terminology here. I'll need to review my notes before answering.

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Avery

9 months ago

Okay, let me break this down step-by-step to make sure I get the right answer.

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Laurel

9 months ago

Hmm, I'm not sure about this one. I'll need to think it through carefully.

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Magda

9 months ago

This question seems straightforward, I think I can figure it out.

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Geoffrey

1 year ago

I agree with Jarod, the correct answer is C) Anterior scalenes.

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Jarod

1 year ago

But during eccentric extension, the Levator scapula is actually firing to control the movement.

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Arlyne

1 year ago

I disagree, I believe it's D) Levator scapula.

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Callie

1 year ago

Ha, I bet the answer is A) Sternocleidomastoid. That muscle's busy turning my head, not extending it!

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Freeman

1 year ago

User 4: B) Lonqus coll is the correct answer.

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Shawna

1 year ago

User 3: I'm going with C) Anterior scalenes.

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Nichelle

1 year ago

User 2: No, it's actually D) Levator scapula.

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Salina

1 year ago

User 1: I think it's A) Sternocleidomastoid too.

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Kimbery

1 year ago

Hold up, is this a trick question? I'm gonna go with C) Anterior scalenes. Those bad boys are all about keeping the neck upright.

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Avery

1 year ago

I'm pretty sure it's B) Longus colli. That muscle's all about flexion, not extension, right?

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Raylene

1 year ago

Hmm, this one's a head-scratcher. I'm going to guess D) Levator scapula. Seems like the odd one out for eccentric neck extension.

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Lai

1 year ago

User 3: I agree with the original guess, D) Levator scapula.

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Kara

1 year ago

User 2: I'm going with C) Anterior scalenes.

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Jame

1 year ago

User 1: I think it's A) Sternocleidomastoid.

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Jarod

1 year ago

I think the answer is C) Anterior scalenes.

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