An Individual with a "Double-Jointed" Thumb Can Pull It Back

question 77

Multiple Choice

An individual with a "double-jointed" thumb can pull it back towards the wrist much farther than normal.What does it mean to be "double-jointed?"

• A) the additional joint present doubles the range of motion
• B) articular cartilage at bone ends is replaced with hyaline cartilage
• C) greater than normal production of serous fluid lubricates the joint and extends it
• D) the joint capsules and ligaments are more stretchy and loose than normal

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