DQ Compare and contrast the major muscle groups of the upper and lower limbs

DQ Compare and contrast the major muscle groups of the upper and lower limbs
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// Please use this as a reference and compile your own answer with its help // Best  regards // // Honest Abe // Compare and contrast the major muscle groups of the upper and lower limbs and  relate their similarities and differences to their function. The upper and lower limbs muscles, also called appendicular muscles, help in total range  of movement of these limbs. Upper limb involves the pectoral girdle and muscles of the  arm whereas lower limb involves the pelvic girdle and muscles of leg.  In the upper limb, pelvic girdle muscle mainly, pectoralis major is responsible for  keeping  the upper limb stable or close to torso (adduction), initiating movement by flexion of upper  arm and internal rotation of  arm. Likewise pelvic girdle muscles involved in lower limb are  iliacus and psoas major. They stabilize the upper leg being connected to axial skeleton on  other end and help in transferring of weight and initiating movement limb. Gluteus  maximus muscle on the back helps in extending hip joint and external rotation of leg. 
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