Gemellus superior

A muscle located in the posterior region of the hip, playing a crucial role in hip movement.

The gemellus superior is a small muscle found in the gluteal region of the human body. It is situated superior to the gemellus inferior muscle and is part of the group of muscles known as the lateral rotators of the hip. It originates from the ischial spine and inserts into the tendon of the obturator internus muscle, aiding in stabilizing the hip joint.

Terminologia Anatomica

gemellus-superior

System

Muscular system

Function

The primary function of the gemellus superior is to assist in the lateral rotation of the thigh at the hip joint. This action is vital during activities such as walking, running, and any movement that requires the leg to move away from the midline of the body. Additionally, this muscle contributes to the stability and support of the hip joint, ensuring proper alignment and function during various activities. It works in coordination with other muscles in the hip region, such as the obturator internus, to facilitate controlled movements while also playing a significant role in maintaining balance when standing or moving.

Location

Positioned within the gluteal region, the gemellus superior muscle is located at the posterior aspect of the hip. It lies above the gemellus inferior and beneath the gluteus maximus. The gemellus superior is anchored to the ischial spine of the pelvis and connects to the tendon of the obturator internus, which traverses through the lesser sciatic notch, ultimately inserting into the greater trochanter of the femur. This positioning allows it to effectively contribute to hip movements while remaining deeply situated within the hip joint area, making it less visible but critically important for mobility and stability.

Did You Know?

The name 'gemellus' comes from the Latin word for 'gem', reflecting its paired nature with the gemellus inferior.
Despite its small size, the gemellus superior plays a significant role in hip stability and mobility.
Both the gemellus superior and inferior are sometimes referred to collectively as the 'gemelli muscles' and work closely with the obturator internus.