16; D. all of the above
explanation; the gluteus maximus works with the semitendinosus and semimembranosus muscles, extending the thigh. it is, indeed, located in the buttocks, and can be used as an injection site.
17; D. both B and C
explanation; the latissimus dorsi collaborates with the teres major and pectoralis major to adduct and medially rotate the arm at it’s glenohumeral joint.
