<prompt> Depolarising muscle relaxant?ScolineAtracuriumPancuroniumCisatracurium  <response>: Ans. a Scoline. Ref. KD Tripathi, 4th ed., 151MUSCLE RELAXANTSDepolarising typeThey are short acting muscle relaxants e.g., Suxamethonium ScolineNon-depolarising typeThey are long acting muscle relaxants e.g. Atracurium, vecuronium, tubocurate, pancuronium, pipecuronium rocuronium, 51 W 89 etc. Muscle relaxants are given mainly intravenously, dantrolene and quinine cause muscle relaxation by direct action.Depolarising muscle relaxants -Short acting muscle relaxants -Depolarising muscle relaxant causes fasciculation, but non-depolarising muscle relaxants do not cause fasciculation. -Depolarising and non-depolarising muscle relaxants should never be mixed in same syringe. -There is no reliable antagonist to depolarising muscle relaxants. -Depolarised muscles do not respond to mechanical or electrical stimuli etc. -In partial paralysis, the neuromuscular monitoring shows no fade, no post tetanic fasciculations. 