frontoparietalis
Frontoparietalis is a term used in anatomy to describe a muscle or muscular sheet that extends from the frontal region toward the parietal area of the scalp. Its recognition and precise boundaries vary among species. In humans, the frontoparietalis is not universally treated as a distinct, independent muscle; instead, its fibers are often considered part of the frontalis or the broader occipitofrontalis complex, and its development can be variable. In other mammals, however, the frontoparietalis can present as a more distinct layer or muscle that connects the frontal region to the parietal area and contributes to movements of the scalp.
Anatomy and relationships: when described as a separate structure, the frontoparietalis lies superficially to the parietal
Innervation and function: when identifiable as part of the frontal-muscle complex, the frontoparietalis is generally innervated
Development and evolution: the frontoparietalis reflects the variability of head musculature across mammals. It is viewed
See also: occipitofrontalis, frontalis, galea aponeurotica, temporoparietalis.