Sexual dimorphism of the skull and its changes during senescence

The thesis deals with the influence of age changes on the expression of sexual dimorphism of the skull of individuals in the Czech population. Thesis follow the previous study of Musilová and colleagues (2016) that reveals a significant reduction of size and shape sexual dimorphism in French population. It is important to verify this trend on multipopulation data because of the significant effect of population affinity on manifestation of sex-specific craniofacial traits. Incorrect sex classification could affect the remaining parameters forming the individual's biological profile. Large-scale data of the heads of the Czech population obtained by computer tomography were analyzed, and only exocranial surfaces were subsequently isolated. The group consisted of 142 individuals, of whom 59 were women aged 21 to 85 years. Men were represented by 83 individuals in the age range of 21 to 87 years. Significant sexual dimorphism was identified in all age categories in the form and shape of the skull and was concentrated in the area of the superciliary arches and glabela, the zygomatic arches, mastoid process and protuberantia occipitalis externa. With increasing age, there was a decrease in sexual dimorphism due to shape changes, not size changes, in the area of the superciliary arches, the root of the..