The Mysterious Function of the Kneecap

The Mysterious Function of the Kneecap

Assessment

Interactive Video

Health Sciences, Biology

University

Hard

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The video explores the anatomy and function of the kneecap, or patella, highlighting its role as a sesamoid bone that enhances the mechanical advantage of the quadriceps muscles. Through cadaver dissections and whiteboard explanations, the video demonstrates how the patella increases leverage, making the quadriceps 30% stronger. It also discusses the patella's sliding and gliding motion, which changes its mechanical advantage based on joint angles, particularly between 20 to 60 degrees of knee flexion.

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4 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the common locations in the body where sesamoid bones can be found?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the role of the patella in protecting the tendon from wear and tear?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the presence of the patella affect the strength of the quadriceps?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the concept of the moment arm in relation to the patella and quadriceps.

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