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Home > Anatomy & Physiology > Muscles > Subscapularis

Subscapularis Muscle

Subscapularis is one of the four rotator cuff muscles. The muscle also acts to hold the head of the humerus in position and prevents it moving forwards.

Origin

  • Anterior (costal) surface of the scapula

Insertion

  • Lesser tuberosity of the humerus

Actions

  • Internal rotation
  • Adduction

Innervation

  • Upper and lower subscapular nerves

Daily uses

  • Tucking the back of your shirt into your trousers

How can I stretch it?

How can I strengthen it?

Subscapularis

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