subscapularis

English edit

subscapularis

(anatomy) A certain large, triangular muscle near the shoulder that plays a key role in rotating the arm
- 2008 April 15, Tyler Kepner, “Chamberlain Leaves Yanks to Join His Ill Father”, in New York Times‎^[1]:
  A strain is a catch-all term for a tear, and Posada’s is located in the subscapularis muscle.