Why Don't We Have Elbowcaps?
Interactive Video
•
Science, Health Sciences, Biology
•
11th Grade - University
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
The video explores the structural similarities and differences between arms and legs, focusing on why legs have kneecaps while elbows do not. Kneecaps, or patellae, are sesamoid bones that enhance the power of the quadriceps muscle and protect the knee joint. In contrast, elbows lack such bones because they do not bear weight. The video also discusses the evolutionary aspect of sesamoid bones, noting that some animals have them in their elbows.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
How does the patella enhance the power of the quadriceps muscle?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the significance of sesamoid bones in the body, particularly in relation to elbows and knees?
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