(a) State one difference between a ball and socket joint and a hinge joint. [2] (b) Give one example of a sporting action where a ball and socket joint is u...
Question 1 Report
(a) State one difference between a ball and socket joint and a hinge joint. [2]
(b) Give one example of a sporting action where a ball and socket joint is used. Name the joint. [2]
Answer Details
(a) One key difference:
- A ball and socket joint allows movement in all directions and multiple planes, including flexion, extension, abduction, adduction, rotation and circumduction. [1]
- A hinge joint allows movement in only one plane, limited to flexion and extension. [1]
(b) A suitable sporting example where a ball and socket joint is used, with the joint named:
- A cricket bowler uses the shoulder joint (ball and socket) to rotate the arm through a full circular motion when delivering the ball. [1+1]
Other acceptable examples include a footballer using the hip joint to kick the ball, or a swimmer using the shoulder joint during the freestyle stroke.
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