The Platysma. The platysma is a paired flat, superficial neck muscle. It is counted among the mimic musculature. The platysma extends from the facial skin slightly above the insertions of the lower jaw to about the height of the second rib. It proceeds upward along the front side of the neck crossing the collar bone.
Biological psychology, or biopsychology, is a field in which the mind-body connection is explored through scientific research and clinical practice.
Definition of psychology. plural. psychologies. 1 : the science of mind and behavior. 2a : the mental or behavioral characteristics of an individual or groupb : the study of mind and behavior in relation to a particular field of knowledge or activity. 3 : a theory or system of psychology Freudian psychology the psychology of Jung.