<prompt> Which of the following occurs first with the use of d-tubocurare:Diaphragmatic relaxationAbdominal wall relaxationDiplopiaPtosis  <response>: Any neuromuscular blocker when given intravenously goes to highly perfused organ like diaphragm and intercostal muscle first then facial muscle , then upper limb and last lower limb. Thus sequence of block - diaphragm and intercostal muscle - facial muscle - upper limb - lower limb 