oppositetermextensionfundamentallymeansastraightening.Intheanatomicalpositionmostofthemembersofthebodyareintheextendedposition;thearmsandlegsarestraight,asisalsotheback.Inthecaseofthefoot,thesetermsleadtosomeconfusionsince,intheerectposition,theankleisalmostcontinuouslysemiflexed.Fromthisposition,furtherflexionismore...