Raymond C. Truex and Carl E. Kellner, Detailed Atlas of the Head and Neck. 1948. Oxford University Press.

FIG. 105. KEY FIGURE.

Structures of the head and neck that follow an ascending or descending course parallel to the longitudinal axis of the body may appear to occupy widely differing positions in adjacent frontal sections (e.g. blood vessels and nerves). For this reason the duplication of legends in some of the illustrations was deemed a desirable aid to the reader in orienting the important structures that continued through a number of the sections.