Anatomy and Functionality of Hip Muscles and Joints Quiz

The gluteus minimus attaches from the external surface of the ilium to the greater trochanter of the femur, aiding in hip stabilization and movement.

The piriformis muscle functions to laterally rotate the thigh and abduct the hip. It does not perform the movements described in the incorrect answers.

The piriformis muscle attaches from the sacrum to the superior aspect of the trochanter. This attachment allows the piriformis muscle to play a role in rotating the hip.

The obturator externus is responsible for adducting and laterally rotating the thigh. Incorrect answers describe movements that the obturator externus is not responsible for.

The correct attachments of the obturator externus are pubis, ischium, and obturator membrane to trochanteric fossa, providing stability and function to the hip joint.

The obturator internus muscle is responsible for both abducting and laterally rotating the thigh, not adducting or internally rotating. It does not play a direct role in flexing or extending the thigh, nor in rotating or flexing the knee.

The obturator internus attaches the anterior inferior portion of pubis and obturator membrane to the greater trochanter. The incorrect answers provided do not describe the correct attachments of the obturator internus.

The gemelli muscles are responsible for the lateral rotation of the extended thigh during movement.

The gemelli muscles are a pair of muscles in the hip region that attach from the spine of the ischium to the greater trochanter. The incorrect answers provided do not accurately describe the attachments of the gemelli muscles.

The quadratus femoris muscle is responsible for laterally rotating the thigh and adducting the leg at the hip joint, not medially rotating or abducting. It is not involved in flexion movements of the thigh or extension movements of the leg at the hip.

The correct attachment of the quadratus femoris is from the external ischial tuberosity to the superior portion of the femur. The other options do not correctly describe the attachments of the quadratus femoris.

The tensor fasciae latae muscle primarily functions to abduct and flex at the hip joint, allowing for movements like lifting the leg sideways and bringing the thigh towards the chest.

The tensor fasciae latae attaches from the lateral superior iliac spine to the iliotibial tract. The incorrect answers do not accurately describe the attachments of the tensor fasciae latae.

The innominate, also known as the hip bone, is composed of the Ischium, Ilium, and Pubis. These three bones together form the pelvic girdle.

The gluteus maximus is responsible for external rotation, abduction, and extension of the leg at the hip joint, not adduction, flexion, or internal rotation.

The correct attachments of the gluteus maximus are the ilium, dorsal sacrum and coccyx to the gluteal tuberosity of the femur. The incorrect answers provided have anatomical structures that are not directly related to the attachments of the gluteus maximus.

The gluteus medius primarily functions to abduct the thigh and medially rotate it. The incorrect answers provided do not accurately describe the movements associated with the gluteus medius.

The gluteus medius muscle attaches from the external surface of the ilium to the greater trochanter of the femur, allowing for hip abduction and rotation.

The gluteus minimus is responsible for abduction and medially rotating the thigh, which are its primary movements.