This book discusses current research in the study of the development, disorders and regeneration of muscle cells. Topics include the basic biology and current concepts of muscle regeneration; calvarial and periodontal tissue induction by autogenous striated muscle stem cells; the role of muscle cells on the processus vaginalis; a discussion on the key residues which cause differential gallbladder response to PACAP and VIP in the guinea pig; and controlling muscle functions with light.