Teres Minor - Muscle Physiology & Functional Anatomy

Teres Minor Muscle

 

Anatomy

 

Origin:

  • Lateral border (posterior on upper & middle part) of the (lateral) scapula


Insertion:

  • Inferior facet of (posterior) greater tubercle of the humerus



Major Arteries:

  • Posterior circumflex humeral artery

  • Circumflex scapular artery

 

Neural Innervation:

  • Axillary nerve

 

Trigger Points:

Teres Minor Trigger Pints

 

 

Physiology

 

Concentric Functions:

  • External rotation, transverse abduction & transverse extension of the humerus

 

Eccentric Functions:

  • Decelerates shoulder internal rotation

 

Isometric Function:

  • Posterior stabilization of the shoulder joint

 

Related Muscles

 

Antagonists:

 

Exercises:

 

 


More Images of the Teres Minor Muscle

 

Teres Minor

 


More Information about the Teres Minor Muscle

Derived from the Latin word 'teres' meaning rounded, the teres minor muscle is a narrow, elongated muscle and is one of the four muscles that make up the rotator cuff along with the supraspinatus, subscapularis and infraspinatus.  The teres minor muscle works closely with the infraspinatus.  The teres minor also plays a role as a protective reflex to enhance proprioception during functional movements.

 

 

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