Which combination is the example of ball and socket joints:
Correct answer: A. Hip and shoulder joints
- A. Hip and shoulder joints
- B. Hip and knee joints
- C. Shoulder and knee joints
- D. Hip and elbow joints
Explanation
The ball and socket joint also called as the spheroidal joint is a joint in which the ball-like rounded surface of a bone moves within a cup-like depression on another bone, this allows greater freedom of movement (full circle) than any other kind of joint. As evident from the figure, the shoulder joint and the hip joint are of ball and socket type. Whereas, the elbow, knee and ankle joints are hinge joints.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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