Cassii iatrosophistae naturales et medicinales quaestiones LXXXIIII, circa hominis naturam & morbos aliquot

X. It has been clearly observed that where wounds have been inflicted on the head such that even the bones are divided, they are more dangerous on the vertex and the sinciput the top or front part of the head; whereas those that are led to a scar are more easily healed than wounds made around the occiput. We offer the cause of this, since the parts around the sinciput, which are more excellent than the others, have a thin membrane placed underneath, and therefore it is likely that the place is dangerous: where, however, a scar is induced, it is healed more easily, undoubtedly because nature contributes greater aid to the healing of more principal parts. Wounds of the occiput, however, are less dangerous because the membrane there is fleshy, but they are more difficult to cure because they do not have such aid, and while the torn edges are healing, they are also dried out further by medications that induce scarring.