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| Iliopsoas muscle ： ウィキペディア英語版 |
Iliopsoas
The term iliopsoas (ilio-so-as) refers to the combination of the psoas major and the iliacus at their inferior ends. These muscles are distinct in the abdomen, but usually indistinguishable in the thigh. As such, they are usually given the common name "iliopsoas" and are referred to as the "dorsal hip muscles" or "inner hip muscles". The psoas minor does not contribute to the iliopsoas muscle.
== Structure ==
The psoas major originates along the lateral surfaces of the vertebral bodies of T12 and L1-L3 and their associated intervertebral discs.
The iliacus originates in the iliac fossa of the pelvis.〔
The psoas major unites with the iliacus at the level of the inguinal ligament and crosses the hip joint to insert on the lesser trochanter of the femur. The iliopsoas is involved in flexion and lateral rotation (supination) of the thigh. If the limb is fixed they involve in flexion of the trunk.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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