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muslces

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Terms in this set (11)

  • trapezius muscle superior part

    elevates scapula

  • middle trapezius

    retracts scapula

  • inferior trapezius

    depresses scapula, can work with superior part of serratus anterior to rotate scapula superiorly

  • levator scapulae muscle

    works with superior part of trapezius and elevates scapula

  • rhomboid major and minor

    work with middle portion of trapezius to retract scapula

  • pectoralis major

    powerful agonist of arm flexion, adducts arm at shoulder and internally rotates it

  • coracobrachialis

    assists the pectoralis major with flexion and adduction of humerus

  • deltoid muscle, anterior fibers

    assist pectoralis major with arm flexion

  • deltoid, central

    agonist of arm abduction

  • deltoid posterior fibers

    assist with arm extension, popular site for intramuscular injections

  • latissimus dorsi muscle

    extends, adducts, internally rotates arm