The individual muscles receive their innervating facial nerve branches from their deeper surface when they belong to the superficial (first, second, or third) layer and from outside when they lie ...

Facial muscle anatomy reveals why targeted exercises through gum chewing prove ineffective for aesthetic enhancement. The masseter muscle’s development responds primarily to genetic factors and ...

Yes, that's right—dimples are caused by a defect in the facial muscles. Despite their widespread admiration, the science behind dimples reveals an interesting aspect of human anatomy and genetics.