Adductor Magnus - Muscle Physiology & Functional Anatomy

Adductor Magnus

 

Anatomy

 

Origin:

  • Ischiopubic ramus (anterior, adductor portion)

  • Lower outer quadrant of posterior surface of ischial tuberosity (posterior, hamstring or ischial fibers)

Insertion:

  • Lower gluteal line & linea aspera (anterior, adductor portion)

  • Adductor tubercle on the medial condyle ridge (posterior, hamstring or ischial fibers)



Major Artery:

  • Obturator artery

 

Neural Innervation:

  • Posterior division (L2-L4) of obturator nerve (anterior, adductor portion)

  • Tibial portion (L4-S3) of sciatic

 

Trigger Points:

Adductor Magnus Trigger Points   

 

 

Physiology

 

Concentric Functions:

  • Hip adduction, transverse adduction & external rotation (during adduction)

  • Provides frontal plane stabilization during stance & assists in hip extension

 

Eccentric Functions:

  • Helps decelerates hip flexion at heel strike along with the other muscles of the adductor complex

 

Isometric Function:

  • Helps dynamically stabilize the lumbo-pelvic hip along with the other muscles of the adductor complex

 

Related Muscles

Antagonists:

Exercises:

 

 


More Images of the Adductor Magnus Muscle

Adductor Magnus

 

Cross Section of Adductor Magnus


More Information about the Adductor Magnus Muscle

The adductor magnus muscle is the biggest muscle in the adductor complex of the inner thighs.  It functions as a synergy with the adductor brevis, adductor longus, & pectineus muscles.

 

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