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irina1246 [14]
3 years ago
5

Why our knee joint bends only in one direction​

Chemistry
1 answer:
sp2606 [1]3 years ago
5 0
The ligaments, tendons, and muscles of the knee prevent it from hyperextending or bending backwards. Most notably, the posterior cruciate ligament (PCL) prevents the knee from hyperextending by connecting the femur (thigh bone) to the tibia (shin bone).
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4 years ago
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8 0
3 years ago
Please help... I am begging...
iVinArrow [24]

Answer:

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5 0
4 years ago
1. What kinds of metals are REALLY reactive? why?
Olin [163]

Answer:

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I hope this helps.  Let me know if anything is unclear.

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