Multiple Choice
The shoulder and hip joints are considered what kind of joints?
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8. Joints
Classification of Joints
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Which of the following is an example of a ball and socket joint?
A
Knee joint
B
Elbow joint
C
Ankle joint
D
Hip joint
Verified step by step guidance1
Understand the definition of a ball and socket joint: A ball and socket joint is a type of synovial joint where a spherical end of one bone fits into a cup-like cavity of another bone, allowing for multi-directional movement and rotation.
Identify the characteristics of a ball and socket joint: These joints allow for the greatest range of motion, including flexion, extension, abduction, adduction, rotation, and circumduction.
Review the anatomy of the hip joint: The hip joint is a classic example of a ball and socket joint, where the spherical head of the femur fits into the acetabulum of the pelvis.
Compare the hip joint with other joints listed: The knee, elbow, and ankle joints are hinge joints, which primarily allow movement in one plane, unlike the multi-directional movement of ball and socket joints.
Conclude that the hip joint is the correct example of a ball and socket joint, based on its structure and range of motion.
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