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What is the function of ligaments?

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Quick Answer

The function of ligaments is connecting one bone to another bone, according to MedlinePlus. Ligaments also protect the joints from damage by limiting certain types of movements.

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The human body has more than 20 different ligaments, according to the University of Arkansas for Medical Sciences. They are found in the back, upper limbs, lower limbs, chest, abdomen, pelvis, head and neck.

One of the most well-known ligaments is the anterior cruciate ligament. The ACL connects the thigh bone to the tibia, which is found in the calf. The American Academy of Orthopaedic Surgeons estimates that approximately 200,000 ACL injuries happen each year.

A good way to see a ligament at work is to attempt to bend the elbow backward. Ligaments prevent this motion, reducing the risk of injury to the joint.

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