A medical illustration from 'Atlas and Text-book of Human Anatomy' (by Dr. Johannes Sobotta) shows the superficial nerves and vessels of the head, 1911. The facial branches are black, the cervical nerve white, the first branch of the trigeminus yellow, the second branch blue, and the third branch green. The aricular branch of the vagus is streaked with blue. A portion of the platysina has been removed. The quadratus labii superior is cut away (Photo by VintageMedStock/Getty Images)
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