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The lesser trochanter is a conical posteromedial projection of the shaft of the femur, projecting from the posteroinferior aspect of its junction with the femoral neck. [1] The summit and anterior surface of the lesser trochanter are rough, whereas its posterior surface is smooth. [1] From its apex three well-marked borders extend: [2]
It crosses the hip joint to insert on the lesser trochanter of the femur. [1] The iliopsoas is classified as an "anterior hip muscle" or "inner hip muscle". [2] The psoas minor does contribute to the iliopsoas muscle. The inferior portion below the inguinal ligament forms part of the floor of the femoral triangle.
In addition, attachment to the lesser trochanter, located on the posteromedial aspect of the femur, causes lateral rotation and weak adduction of the hip. It forms part of a group of muscles called the hip flexors , whose action is primarily to lift the upper leg towards the body when the body is fixed or to pull the body towards the leg when ...
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 ...
It joins the psoas major to form the iliopsoas. [1] It proceeds across the iliopubic eminence through the muscular lacuna to its insertion on the lesser trochanter of the femur. [1] Its fibers are often inserted in front of those of the psoas major and extend distally over the lesser trochanter. [2]
The two muscles unite to form the iliopsoas muscle, which is inserted on the lesser trochanter of the femur. The psoas minor, only present in about 50 per cent of subjects, originates above the psoas major to stretch obliquely down to its insertion on the interior side of the major muscle. [16]
Above, the linea aspera is prolonged by three ridges. The lateral ridge is very rough, and runs almost vertically upward to the base of the greater trochanter.It is termed the gluteal tuberosity, and gives attachment to part of the gluteus maximus: its upper part is often elongated into a roughened crest, on which a more or less well-marked, rounded tubercle, the third trochanter, is ...
A trochanter is a tubercle of the femur near its joint with the hip bone. In humans and most mammals , the trochanters serve as important muscle attachment sites. Humans have two, sometimes three , trochanters.