The forbidding of shaving the "corners of the head" was interpreted by the Mishnah as prohibiting the hair at the temples being cut so that the hairline was a straight line from behind the ears to the forehead; thus it was deemed necessary to retain sidelocks, leading to the development of a distinctly Jewish form of sidelock, known as payot. As for the beard, more complicated views arose; the "corners of the beard" were explained to refer to five extremities in the Talmud. There are many opinions in mediaeval scholars as to what these five points are. For example, it may be a point on each cheek near the temples, a point at the end of the cheek bone towards the centre of the face, and the point of the chin. Or it may be 2 on the mustache, 2 somewhere on the cheek, and one on the point on the chin. As a result, Shulchan Aruch prohibits the shaving of the entire beard and mustache.