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『広大な』,広範囲な / (数・量・程度などにおいて)ものすごい,ばく大な

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/11/26 22:45:49」(JST)

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The vastus intermedius (/ˈvæstəs ˌɪntərˈmiːdi.əs/) (Cruraeus) arises from the front and lateral surfaces of the body of the femur in its upper two-thirds, sitting under the rectus femoris muscle 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^{[definition needed]} 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.

Due to being the deeper middle-most of the quadriceps muscle group, the intermedius is the most difficult to stretch once maximum knee flexion is attained. It cannot be further stretched by hip extension as the rectus femoris can, nor is it accessible to manipulate with massage therapy to stretch the fibres sideways as the vastus lateralis and vastus medialis are.

Additional images

Right femur. Anterior surface.
Right femur. Posterior surface.
Muscles of the iliac and anterior femoral regions.
Cross-section through the middle of the thigh.
Cross section through thigh.
Vastus intermedius muscle
Vastus intermedius muscle
Muscles of thigh. Cross section.
Muscles of Thigh. Anterior views.

References

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

External links

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English Journal

Distal myopathy with ADSSL1 mutations in Korean patients.

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Neuromuscular disorders : NMD.Neuromuscul Disord.2017 May;27(5):465-472. doi: 10.1016/j.nmd.2017.02.004. Epub 2017 Feb 14.
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Mutations in mitochondrial DNA causing tubulointerstitial kidney disease.

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Substantial deficiency of free sialic acid in muscles of patients with GNE myopathy and in a mouse model.

Chan YM1, Lee P1, Jungles S1, Morris G1, Cadaoas J1, Skrinar A1, Vellard M1, Kakkis E1.
PloS one.PLoS One.2017 Mar 7;12(3):e0173261. doi: 10.1371/journal.pone.0173261. eCollection 2017.
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「中間広筋」

Vastus intermedius muscle
	Muscles of lower extremity
Details
Latin	Musculus vastus intermedius
Origin	antero/ lateral femur
Insertion	Quadriceps tendon
Artery	femoral artery
Nerve	femoral nerve
Actions	Extension of knee joint
Identifiers
Gray's	p.471
TA	A04.7.02.022
FMA	22433
	Anatomical terms of muscle