Question at position 39 The hip joint is a ____________ joint that allows movement in multiple directions.SaddlePivotBall-and-socketHinge

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BlackTom AI · Accepted Answer

Question: The hip joint is a ____________ joint that allows movement in multiple directions. Options: Saddle, Pivot, Ball-and-socket, Hinge.
Option 1: Saddle. This type of joint is typically biaxial and allows movement in two directions (such as thumb), but the hip is not saddle-shaped and does not primarily function this way. Misconception: confusing saddle with multi-axial capability, when saddle joints are more limited in range compared to ball-and-socket.
Option 2: Pivot. Pivot joints permit rotation around a single axis (like the neck rotating), giving limited directions of movement. Misconception: rotation around one axis is not the hallmark of hip movement, which involves many directions.
Option 3: Ball-and-socket. This joint features a rounded head (ball) fitting into a cup-like socket, enabling movement in multiple directions: flexion/extension, abduction/adduction, and internal/external rotation. This aligns with the hip’s true anatomy and functional range. Correct reasoning: the ball-and-socket arrangement provides multi-axial movement and wide range of motion.
Option 4: Hinge. Hinge joints allow opening and closing actions in one plane (like the elbow or knee), providing primarily flexion and extension with limited sideways movement. Misconception: hinge joints do not support multi-directional hip movements.
Summary: Among the options, the one that best accounts for the hip joint’s multi-directional mobility is the ball-and-socket type, due to its ball-and-socket geometry enabling multiple axes of rotation.

Question at position 39 The hip joint is a ____________ joint that allows movement in multiple directions.SaddlePivotBall-and-socketHinge

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