For each muscle listed please provide a brief description of the muscle, examples of the types movements it assist with, as well as the ACTIONS, INSERTION & ORIGIN. Include how the each muscle can be lengthened or stretched and shortened. In addition please list at least synergist and antagonist for each muscle.
Infraspinatous
Adductor Magnus
Psoas Major
Obturator exturnus
Semitendinous
Levator Scapula
Plantaris