- Vastus intermedius muscle
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Vastus intermedius muscle 
Muscles of lower extremity Gray's subject #128 471 Origin antero/ lateral femur Insertion patellar ligament Artery femoral artery Nerve femoral nerve Actions extends leg The Vastus intermedius (Cruraeus) arises from the front and lateral surfaces of the body of the femur in its upper two-thirds, sitting under Rectus Femoris 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[when defined as?] 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
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Right femur. Anterior surface.
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Right femur. Posterior surface.
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Muscles of the iliac and anterior femoral regions.
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Cross-section through the middle of the thigh.
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Cross section through thigh.
External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
List of muscles of lower limbs (TA A04.7, GA 4.465) ILIAC Region
/ ILIOPSOASBUTTOCKS THIGH /
compartmentssartorius · quadriceps (rectus femoris, vastus lateralis, vastus intermedius, vastus medialis) · articularis genuLEG/
Crus/
compartmentssuperficial · triceps surae (gastrocnemius, soleus, accessory soleus, Achilles tendon) · plantaris
deep · tarsal tunnel (flexor hallucis longus, flexor digitorum longus, tibialis posterior) · popliteusfibularis muscles (longus, brevis)FOOT DorsalPlantar1st layer (abductor hallucis, flexor digitorum brevis, abductor digiti minimi) · 2nd layer (quadratus plantae, lumbrical muscle) · 3rd layer (flexor hallucis brevis, adductor hallucis, flexor digiti minimi brevis) · 4th layer (dorsal interossei, plantar interossei)Categories:- Muscle stubs
- Knee extensors
- Muscles of the quadriceps
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См. также в других словарях:
vastus intermedius muscle — musculus vastus intermedius … Medical dictionary
vastus intermedius — vastus in·ter·me·di·us .in tər mēd ē əs n the division of the quadriceps muscle that arises from and covers the front of the shaft of the femur … Medical dictionary
vastus intermedius — ˌsintərˈmēdēəs noun Etymology: New Latin, literally, great intermediate (muscle) : the division of the quadriceps muscle that arises from and covers the front of the shaft of the femur … Useful english dictionary
Muscle — is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart… … Medical dictionary
vastus medialis — vastus me·di·a·lis .mēd ē ā ləs, al əs n the division of the quadriceps muscle that covers the inner anterior aspect of the femur, arises chiefly from the femur and the adjacent intermuscular septum, inserts into the inner border of the patella… … Medical dictionary
Vastus medialis — Infobox Muscle Name=PAGENAME Latin= GraySubject=128 GrayPage=471 Caption=Vastus medialis Caption2=Muscles of lower extremity Origin=femur Insertion=patella Blood=femoral artery Nerve=femoral nerve Action=extends leg DorlandsPre= DorlandsSuf=|The… … Wikipedia
vastus — Great. See v. intermedius (muscle), v. lateralis (muscle), v. medialis (muscle). [L.] * * * n. any of three muscles (vastus intermedius, vastus lateralis, and v … Medical dictionary
Muscle — For other uses of Muscle , see Muscle (disambiguation). A top down view of skeletal muscle Muscle (from Latin … Wikipedia
vastus medialis — ˌsmēdēˈalə̇s, ˈāl , ˈäl noun Etymology: New Latin, literally, great medial (muscle) : a division of the quadriceps muscle covering the inner anterior aspect of the femur, arising chiefly from that bone and the adjacent intermuscular septum,… … Useful english dictionary
vastus — n. any of three muscles (vastus intermedius, vastus lateralis, and vastus medialis) that form part of the quadriceps muscle of the thigh … The new mediacal dictionary
