Which joint type allows rotational movement and is present in the hip?

The type of joint that allows for rotational movement in the hip is the ball and socket joint. This joint structure consists of a spherical head (the ball) that fits into a cup-like socket, allowing for a wide range of motion, including rotation.

In the case of the hip joint, the round head of the femur sits in the acetabulum of the pelvis, providing stability while permitting movement in multiple planes: flexion, extension, abduction, adduction, and importantly, internal and external rotation. This multi-dimensional movement capability is essential for various activities such as walking, running, and changing directions.

Other joint types mentioned, such as the hinge joint, only allow movement in one plane (flexion and extension), and thus do not support rotational movement. The pivot joint enables rotation but is typically found in locations such as the neck, and the gliding joint provides limited movement and primarily allows bones to slide over one another without significant rotation. Thus, the ball and socket joint of the hip is uniquely designed to allow for the complex movements required for mobility and flexibility.