Human speech production involves successive actions of biological and physical mechanisms, and they generate linguistic, neurophysiological, biomecanical, and acoustic phenomena. Aspects of the complex system have been crystalized into a variety of models in search of better understanding of speech communication processes. This review reports the existing computational and conceptual models by meany researchers, that are selected from a physiological point of view. They include peripheral components, integrated articulatory systems, motor control schemas, and models of higher brain organization.