CEFR C2

infraspinatus muscle

noun

Meaning

A thick, triangular muscle located on the back of the shoulder blade that acts as a primary external rotator of the humerus.

Examples

  • The infraspinatus muscle is one of the four rotator cuff muscles that stabilize the shoulder joint.
  • Physical therapists often prescribe specific exercises to strengthen the infraspinatus muscle after a shoulder injury.

Synonyms: rotator cuff muscle