Teres Minor

Teres Minor is one of the four rotator cuff muscles surrounding the shoulder. Its main action, along with Infraspinatus is to externally rotate the shoulder joint. There are two Teres muscles, the other being Teres Major.

Origin

• Mid section of the lateral border of the scapula

Insertion

• Greater tuberosity on the humerus

Actions

• External rotation
  
  
• Shoulder adduction

Innervation

• Axillary nerve

Daily uses

• Brushing hair

Example strengthening exercises

• Lateral raises
  
  
• Shoulder external rotation

Example stretches

• Internal rotation stretch

Related injuries

• Rotator cuff injuries

Related muscles

• Supraspinatus
  
  
• Infraspinatus
  
  
• Subscapularis
  
  
• Teres major