In 300 Sienese skulls of known age and sex (146 male and 154 female) 6 modes of expression of bipartition of the hypoglossal canal were studied on the basis of a new scheme of notation that takes into account gradually increasing intensity. The analysis of data, including also the traditional method of notation confirms the criticisms expressed by various authors on the loss of information when the variability of this trait is neglected, especially with reference to age-dependent changes (hyperostotic effects).
Various non-metrical traits were examined in the supraorbital region in a series of skulls of recorded sex (147 males, 130 females), age (18–80 years) and provenance (Siena and surroundings), using a standard method of categorization and notation introduced by two of the authors in 1983. The results are discussed from a topographic-anatomical point of view in relation to trait variation and with respect to the usefulness of the method applied for population studies.
The authors report on first observations on the vascularization of the areae mesocolicae which resulted from radioanatomical studies made in collaboration with the Institute of General Clinical Surgery of the University of Siena.Three areae can be distinguished: colocolica (Treitz), sigmoidea or intersigmoidea, and intercolica.The investigations were carried out using selective preoperative angiography and the injection of anatomical preparations.
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