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.
Neuropsychology (biological psychology) a branch of psychology concerned with the links between biology and behavior. Central nervous system. the portion of the vertebrate nervous system consisting of the brain and spinal cord. Peripheral nervous system. the sensory and motor neurons that connect the central nervous system to the rest of the body.