Figure 13-4 Evolution of neuromuscular blockade in the larynx and thumb (adductor pollicis) after 0.07 mg/kg vecuronium. Onset and recovery from the block occur more rapidly in the larynx. (Redrawn from Donati F, Meistelman C, Plaud B: Vecuronium neuromuscular blockade at the adductor muscles of the larynx and adductor pollicis. Anesthesiology 74:833–837, 1991.)