Question

Number of ball and socket joints present in human body is

• A. 2 pairs
• B. 4 pairs
• C. 6 pairs
• D. 8 pairs

Answer 1

The correct option is A 2 pairs

The ball and socket joint is a type of synovial joint in which the ball shaped surface of one rounded bone fits into the cup like depression of another bone. There are 2 pairs of ball and socket joints present in human body. One is in the hip, where the round head of the femur rests in the cup like acetabulum of the pelvis and another in the glenohumeral joint of the shoulder, where the rounded head of the humerus rests in the cup like glenoid fossa of the shoulder blade. So, the correct answer is '2 pairs'.