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Vastus intermedius muscle
From Wikipedia, the free encyclopedia
| Vastus intermedius muscle | ||
|---|---|---|
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| Muscles of lower extremity | ||
| Gray's | subject #128 471 | |
| Origin: | antero/ lateral femur | |
| Insertion: | patellar ligament | |
| Artery: | femoral artery | |
| Nerve: | femoral nerve | |
| Action: | extends leg | |
The Vastus intermedius (Crureus) arises from the front and lateral surfaces of the body of the femur in its upper two-thirds and from the lower part of the lateral intermuscular septum. Its fibers end in a superficial aponeurosis, which forms the deep part of the Quadriceps femoris tendon.
The Vastus medialis and Vastus intermedius appear to be inseparably united, but when the Rectus femoris has been reflected a narrow interval will be observed extending upward from the medial border of the patella between the two muscles, and the separation may be continued as far as the lower part of the intertrochanteric line, where, however, the two muscles are frequently continuous.
 Right femur. Anterior surface. |
 Right femur. Posterior surface. |
 Muscles of the iliac and anterior femoral regions. |
 Cross-section through the middle of the thigh. |
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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