<prompt> How would a drug that competes with ACh for receptors at the motor end plate affect skeletal muscle? It would:Produce uncontrolled muscle spasmsCause the muscles to contract and be unable to relaxCause muscles to relax and be unable to contractMake the muscles more excitable  <response>: Ref: KD Tripathi pharmacology 7th edition page.no: 58 Anticholinergic drugs compete with acetylcholine for receptors at NM junction . Anticholinergic opposes the action of Ach causing relaxation of the muscle. 