Question

Read the given passage.
Priya met with an accident while going to school. Luckily, she did not get any serious injury, but she is having constant pain in her elbows and knees and finds difficulty in bending her arms and kneeling.
Identify her injured joints and select the correct option regarding them.

• A. Her injured joints are those joints which allow free movement of bones in all planes.
• B. Her injured joints are those joints whose movement resembles the movement of mortar and pestle.
• C. Her injured joints are those joints in which the ball shaped surface of one rounded bone fits into the cup like depression of another bone.
• D. Her injured joints are those joints which allow movement of bones in one plane only.

Answer 1

The correct option is D

Her injured joints are those joints which allow movement of bones in one plane only.

• Hinge joints are present in elbows, knees, fingers and allow the movement of bones in one direction.
• Therefore, her injured joint must be a hinge joint.
• The ball and socket joint which resemble the movement of mortar and pestle allows movement in all the directions. Hence, all the other options are incorrect.