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The lateral rotator group is a group of six small muscles of the hip which all externally (laterally) rotate the femur in the hip joint.It consists of the following muscles: piriformis, gemellus superior, obturator internus, gemellus inferior, quadratus femoris and the obturator externus.
The gluteal muscles include the gluteus maximus, gluteus medius, gluteus minimus, and tensor fasciae latae.They cover the lateral surface of the ilium.The gluteus maximus, which forms most of the muscle of the buttocks, originates primarily on the ilium and sacrum and inserts on the gluteal tuberosity of the femur as well as the iliotibial tract, a tract of strong fibrous tissue that runs ...
External rotation and extension of the hip joint, supports the extended knee through the iliotibial tract, chief antigravity muscle in sitting and abduction of the hip: Antagonist: Iliacus, psoas major and psoas minor: Identifiers; Latin: musculus glutaeus maximus: TA98: A04.7.02.006: TA2: 2598: FMA: 22314: Anatomical terms of muscle
Its action is to extend and to laterally rotate the hip, and also to extend the trunk. The gluteus maximus is larger in size and thicker in humans than in other primates . [ 2 ] Specifically, it is approximately 1.6 times larger relative to body mass compared to chimpanzees and comprises about 18.3% of total hip musculature mass versus 11.7% in ...
The posterior part acting alone helps to extend and externally rotate the hip. The anterior and posterior parts working together abduct the hip and stabilize the pelvis in the coronal plane. [4] Most of the muscle inserts behind the centre of rotation of the hip. However, its function changes in different positions of the femur.
In vertebrate anatomy, the hip, or coxa [1] (pl.: coxae) in medical terminology, refers to either an anatomical region or a joint on the outer (lateral) side of the pelvis.. The hip region is located lateral and anterior to the gluteal region, inferior to the iliac crest, and lateral to the obturator foramen, with muscle tendons and soft tissues overlying the greater trochanter of the femur. [2]
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The gluteal muscles can be classified into two main groups: The superficial gluteal muscles are responsible for extension and abduction of the hip as well as stabilizing and maintaining the balance of the pelvis during the gait cycle. Deep gluteal muscles control external rotation of the extended hip and abduction of the flexed hip. [2]