Question

Identify the type of joints in P and Q.

• A. P - Gliding joint; Q - Pivot joint
• B. P - Hinge joint; Q - Ball and socket joint
• C. P - Pivot joint; Q - Hinge joint
• D. P - Hinge joint; Q - Gliding joint

Answer 1

The correct option is B P - Hinge joint; Q - Ball and socket joint

In the given images, P is hinge joint and Q is ball and socket joint.

$\bullet$ Hinge joints are like door hinge where only back and forth movement is possible. Eg. Fingers and toes, knee, elbow, etc.

$\bullet$ In ball and socket joints, one bone is hooked into hollow space of another bone. This type of joint helps in rotatory movement. Eg. Shoulders