Adductor magnus muscle
| Adductor magnus muscle |
|---|
|
| The adductor group, the adductor magnus muscle, is visible in the lower third |
| origin |
| Pubic bone ( Ramus inferior ossis pubis ) and ischium ( Ramus ossis ischii , Tuber ischiadicum ) |
| approach |
| Thigh bone ( labium med. Of the linea aspera , epicondylus medialis (tuberculum adductorium) ) |
| function |
| Adduction of the thigh |
| Innervation |
| Obturator nerve , tibial nerve |
| Spinal segments |
| L3, L4 |
The adductor magnus muscle ( Latin for "large adductor") is the largest of the adductors of the thigh . It is a large triangular muscle on the inside of the thigh. The hiatus adductorius (from Latin hiatus "opening") or also hiatus tendineus forms between its attachments to the linea aspera and the tuberculum adductorium . The femoral artery and the femoral vein reach the knee bend via the adductor canal through this opening . In ungulates it is the only one of the three adductor muscles and is therefore simply referred to as the adductor muscle . In animals for slaughter, the muscle is part of the upper shell .
Origin and Approach
The part originating from the ramus ischiopubicus is called the pubofemoral part or musculus adductor minimus , the part originating from the tuber ischiadicum is the ischiocondylar or ischiocrural part. The ramus ischiopubicus is a composite part of the ramus inferior ossis pubis (lower pubic branch ) and the ramus inferior ossis ischii (lower ischial branch ).
At the insertion of the muscle, the arched attachment creates several openings in the aponeurosis . The branches of the deep femoral artery pass through the upper four small openings, and the femoral artery and vein pass through the larger, the tendon hiatus .
Positional relationships
With its front surface is the muscle with the muscle pectineus , the adductor brevis , the adductor longus , the femoral artery and vein, the artery deep femoral and deep femoral vein with its branches as well as the rear branches of the obturator artery , vein obturatoria and the obturator nerve in connection. Its posterior surface is connected to the semitendinosus muscle , the semimembranosus muscle , the biceps femoris muscle, and the gluteus maximus muscle .
Inside, the muscle is in contact with the gracilis and sartorius muscles .
The upper border borders on the obturator externus muscle and the quadratus femoris muscle .
function
The adductor magnus muscle flexes and adducts ( adduction : pulling towards the middle of the body) the thigh in the hip joint. The dorsal part of the adductor magnus muscle stretches the thigh in the hip joint, as this part arises from the ischial tuberosity.
Innervation
It is a compound muscle because the adducting and hamstring portions of the muscle are innervated by two different nerves. The adducting part is from the posterior part of the obturator nerve, the ischiocrural part is innervated by the tibial nerve.
See also
- Musculus adductor brevis (Latin for "short adductor")
- Musculus adductor longus (Latin for "long adductor")
- Musculus gracilis (Latin for "slim muscle")
- Musculus pectineus (Latin for "comb muscle")
literature
- Karl Zilles, Gerd Rehkämper: Functional Neuroanatomy . Springer Verlag, Berlin / Heidelberg 1993, ISBN 978-3-540-54690-0 .
- Roman Fischer: Contributions to teaching about the obturator hernia. J. Kaiser'sche Buchhandlung, Lucerne 1856.
Web links
- Flexikon Doccheck; accessed on February 8, 2016
- The Adductors of the Hip Joint , accessed February 8, 2016.
Individual evidence
- ↑ Ramus ischiopubicus , IMAIOS Medical website for health professionals
- ^ The adductor magnus , Henry Gray (1825–1861). Anatomy of the Human Body. 1918.
- ↑ Erasmus Wilson: The anatomist's vade mecum: a system of human anatomy . 1851, p. 261
- ↑ adductor magnus . Department of Radiology, University of Washington. Archived from the original on August 28, 2010.