Sartorius - Muscle Physiology & Functional Anatomy

 

Sartorius Muscle

Anatomy

 

Origin:

  • Anterior superior iliac spine (ASIS)

Insertion:

  • Medial condyle of the tibia



Major Arteries:

  • Femoral artery

 

Neural Innervation:

  • Femoral nerve

  • Intermediate cutaneous nerve of thigh (sometimes)

 

Trigger Points:

Sartorius Trigger Points

 

 

Physiology

 

Concentric Functions:

  • Assists in hip flexion, abduction & external rotation
  • Assists in knee flexion

 

Eccentric Functions:

 

Isometric Function:

 

Related Muscles

 

Antagonists:

Exercises:

 

 

 


More Images of the Sartorius Muscle

 

Sartorius mUscle

Thigh Cross Section - Sartorius

 


More Information about the Sartorius Muscle

Looking at the bottom your foot as if you were checking to see if you had stepped in chewing gum demonstrates all 5 actions of sartorius!  The sartorius muscle is also the longest muscle in the human body. 

The name sartorius is the Latin word for "sartorial" which means "to do with tailoring" which comes from "sartor" which means "tailor."  The 2 hypotheses as to the genesis of the name.  One is a reference to the cross-legged position in which tailors once sat. The other refers to the location of the inferior portion of the muscle being the "inseam" the area of the inner thigh tailors commonly measure when fitting pants.

 

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