Teres Major - Muscle Physiology & Functional Anatomy

 

Teres Major Muscle

Anatomy

 

Origin:

  • Posterior aspect of the inferior angle of the scapula

Insertion:

  • Medial lip of the intertubercular sulcus (grove) of the humerus



Major Arteries:

  • Subscapular artery

  • Circumflex subscapular artery

 

Neural Innervation:

  • Segmental levels C5 & C6 of the lower scapular nerve

 

Trigger Points:

Trigger Points of the Teres Major

 

Physiology

 

Concentric Functions:

  • Shoulder extension, internal rotation and adduction

 

Eccentric Functions:

  • Stabilizes humeral head in glenoid fossa (cavity)

 

Isometric Function:

  • Stabilizes humeral head in glenoid fossa (cavity)

 

Related Muscles

Antagonist:

Exercises:

 

 

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More Images of the Teres Major

Teres Major

 

Teres Major


More Images of the Teres Major