Articularis genus muscle

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Lua error in Module:Infobox at line 235: malformed pattern (missing ']'). The articularis genus (subcrureus) is a small skeletal muscle located anteriorly on the thigh just above the knee.

Structure

It arises from the anterior surface of the lower part of the body of the femur,[1] deep to the vastus intermedius,[2] close to the knee and from the deep fibers of the vastus intermedius.[1]

Its insertion is on the synovial membrane of the knee-joint.[1]

Blood supply

It is supplied by the lateral femoral circumflex artery.[1]

Innervation

It is innervated by branches of the femoral nerve (L2-L4).[1]

Variation

Flat, wispy and highly variable,[3] sometimes consisting of several separate muscular bundles,[4] this muscle is without a distinct investing fascia and ranges 1.5–3 cm in width.[3]

It is usually distinct from the vastus intermedius, but occasionally blended with it.[4][needs update]

Function

Articularis genus pulls the suprapatellar bursa superiorly during extension of the knee,[2] and prevents impingement of the synovial membrane between the patella and the femur.[1]

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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External links

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
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