<prompt> Deltoid muscle causes all except -FlexionofshoulderExtension of shoulderInternal rotation ofshoulderAdduction of shoulder  <response>: Ans. isdi.e., Adduction of shoulder Action of deltoidAnterior clavicular fibres : Flexion and internal medial rotation of shoulder.Middle acromialfibres : Abduction of shoulder.Posterior fibres : Extension and lateral rotation of shoulder 