The papers in this issue were contributed by close friends, the publication of this issue possible. Owing to some un coworkers and pupils ofProfessor Setsuro Ebashi. They are expected troubles ofone ofthe editors (M. E. ) the publication dedicated to him to commemorate his great and pioneering ofthis issue has been greatly delayed, for which he sincerely contribution to the advancement of muscle physiology and apologizes to all the contributors and other editors. We biochemistry, which in course of time exerted a great in believe that this issue reveals the present stateofresearch on fluence...

Cells maintain uneven distribution of Na, K and Ca ions across the cell membrane and membranes of intracellular organellae. Cells exert their functions by allowing for some ion to cross the membrane through ion channels which either produces an electrical effect across the membrane or switches on a series of chemical or physicochemical reactions. This is a comprehensive book about these vitally important ion channels with detailed description of the molecular structure and function and especially of activators and inhibitors. All chapters are written by renowned specialists in their field.