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Multiple Choice
Which of the following joints is classified as a ball-and-socket joint?
A
Elbow joint
B
Knee joint
C
Ankle joint
D
Hip joint
Verified step by step guidance
1
Understand the types of synovial joints: Synovial joints are classified based on their shapes and the movements they allow. The main types include hinge, pivot, saddle, plane, condyloid, and ball-and-socket joints.
Identify the characteristics of a ball-and-socket joint: This type of joint allows for rotational movement and movement in multiple axes. It consists of a spherical head fitting into a cup-like socket.
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, allowing for a wide range of motion.
Compare with other joints: The elbow joint is a hinge joint, allowing movement primarily in one plane. The knee joint is a modified hinge joint, allowing flexion and extension with limited rotation. The ankle joint is a hinge joint, allowing dorsiflexion and plantarflexion.
Conclude that the hip joint is the only ball-and-socket joint among the options provided, allowing for the greatest range of motion compared to the other joints listed.