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The deep gluteal muscles are a set of smaller muscles, located underneath the gluteus minimus. The general action of these muscles is to laterally rotate the lower limb. They also stabilise the hip joint by ‘pulling’ the femoral head into the acetabulum of the pelvis.
There are also small, deep muscles in the gluteal region called the "deep lateral rotators" 0r "deep six muscles". These muscles largely act to laterally rotate the femur. They provide stability to the ball and socket joint of the hip.
The gluteal muscles are the most superficial group of the posterior hip and thigh muscles. This muscle group consists of the gluteus maximus, gluteus medius, gluteus minimus and tensor fasciae latae. These four muscles fill the gluteal (buttock) region and provide it with shape and form.
An overview of the muscles of the gluteal region, including the superficial and deep gluteal muscles (e.g. gluteus maximus, piriformis, quadratus femoris).
Piriformis is a muscle of the gluteal region which lies deep to the gluteus maximus. Piriformis belongs to a group of six short external rotators of the hip, i.e. gemellus superior, obturator internus, gemellus inferior, quadratus femoris, obturator externus.
The gluteus maximus, gluteus medius, gluteus minimus, and tensor fasciae latae muscles are the large and superficial gluteal muscles. They have a variety of functions on the hip joint including extension, external and internal rotation, and abduction and adduction of the thigh at the hip joint.
Figure 1: Ligaments of the gluteal region. Figure 2: Contents of the greater and lesser sciatic foramina. Figure 3: Superficial muscles of the gluteal region and posterior thigh. A. Posterior view and B. Lateral view. Figure 4: Deep muscles of the gluteal region and posterior thigh, posterior view. Muscle. Origin.
You’ve got these three large muscles – the gluteus maximus, medius and minimus and these muscles abduct and extend the hip. And then you’ve got the deep muscles, which are much smaller and they’re lateral rotators of the hip.
The deep gluteal muscles are one of two subgroups of muscles of the gluteal region, the other being the superficial gluteal muscles. Overall, these muscles mainly act to: - abduct the thigh at the hip joint;
The piriformis is a thick, flat muscle and the most superficial muscle among the deep gluteal muscles. It is part of the lateral rotators of the hip (obturator internus, superior and inferior gemelli, quadratus femoris, obturator externus, and gluteus maximus).