<prompt> Which passive movement causes weakness in deep posterior compament syndrome?Foot abductionFoot inversionPlantar flexion of footFoot adduction  <response>: The deep posterior compament contains the flexor hallucis longus, flexor digitorum longus, and posterior tibialis muscles, as well as the posterior tibial nerve. In deep posterior compament syndrome, paresthesias in the plantar aspect of the foot and weakness of toe flexion and foot inversion. Ref: ACSMs Spos Medicine: A Comprehensive Review edited by Francis G. OConnor, 2012, Page 681. 