Which of the following muscles does not act on the tibia or fibula? a) Tibialis anterior b)...

Question:

Which of the following muscles does not act on the tibia or fibula?

a) Tibialis anterior

b) Rectus femoris

c) Biceps femoris

d) Vastus medialis

e) Semimembranosus

Origin and insertion

In simplest terms, the origin and insertion of a muscle describe the location where the muscle begins and where the muscle ends, respectively. The origin is typically the least mobile part of the muscle and is either the point closest to the midline of the body or the most proximal attachment point. The insertion is the most mobile part of the muscle, is found distal to the origin and more lateral to the midline of the body compared to the origin. As the muscle contracts, the muscle will shorten, pulling the insertion towards the origin.

Answer and Explanation: 1

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For muscles to cause movement of a body part, they must insert on that body part. The answer is a, tibialis anterior. The tibialis anterior produces...

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Muscle Origin and Insertion: Definition and Actions

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Chapter 6 / Lesson 2
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Learn the origin and insertion definitions in anatomy. Understand muscle action with examples and compare the muscles that are agonists and antagonists.


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