11. The epicranius (Fig. 63, _h_, _h′_). In dissecting this muscle the
intermedius scutulorum and corrugator supercilii medialis may be cut by
an incision parallel to the middle line but a short distance to one side
of it.
12. The zygomaticus (Fig. 64, _d_). This and the two following muscles
may usually be best seen running beneath the fibres of the platysma,
without reflecting the latter. If necessary, however, the platysma may
be transected and reflected, though this can be done only with great
difficulty.