Question

Which among the following is NOT correctly paired?

• A. Fixed joint - Skull
• B. Ball and socket - Neck
• C. Ball and socket - Shoulder
• D. Hinge joint - Elbow

Answer 1

The correct option is B Ball and socket - Neck

$\bullet$ Our ankle and elbow allow back and forth movement upto 180 degrees. Hinge joints are present in these parts.
$\bullet$ Fixed joints don't permit any movement and are extremely strong. They are present between various bones of the skull.
$\bullet$ In a ball and socket joint, the movement is possible nearly in all the directions allowing greatest range of motion. These joints are present in hip and shoulder.
$\bullet$ Our head moves sideways, up and down but we cannot rotate our head completely like how ball and socket joint would allow. Instead, it allows rotation about an axis alone.