Nerves are large enough to have been recognized by the ancient Egyptians, Greeks, and Romans, but their internal structure was not understood until it became possible to examine them using a microscope.
Saraf cukup besar untuk dikenali oleh orang Mesir, Yunani dan Romawi Kuno, tetapi struktur internalnya tidaklah dimengerti sampai dimungkinkannya pengujian lewat mikroskop.