One of the Most Common Knee Injuries Involves the Tearing

question 58

Multiple Choice

One of the most common knee injuries involves the tearing of the anterior cruciate ligament (ACL) .How would an injury like this affect the function of the knee?

• A) Ligaments attach muscle to bone,so tearing of the ligament would mean that muscles would no longer be able to cause the joint to bend.
• B) Ligaments lubricate the cartilage in a joint,and a tear would allow the lubricant to leak out,causing bones to grind against each other and making it painful to bend the knee.
• C) Ligaments hold the bones of the knee in the proper orientation,so tearing the ligament could disrupt the alignment of the knee,making bending difficult.
• D) Ligaments are the muscles that surround a joint.Muscle tears can be painful but heal quickly and usually do not affect knee function.

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