The present study analyzed the location and number of the diaphysial nutrient foramina in six long bones of adult human skeletons of unknown age and sex from a statistical view point. The diaphysial nutrient foramina in the humerus, are located at between 50 and 65% of the total length; in the radius and ulna, at between 25 and 50%; in the femur, at between 25 and 58%; in the tibia, at between 30 and 40%; and in the fibula at between 35 and 67%, i.e. the middle third of the bone. Also studied were the anatomical position and number of the diaphysial nutrient foramina in each bone.

Background/Objective: The aim of this study was to describe the evolution of total and regional fat mass according to gender, and to establish age and gender-related differences in a largely non-obese sedentary Spanish sample population using dualenergy X-ray absorptiometry (DXA). Subject/Methods: A total of 1113 healthy subjects (397 male and 716 female) from the city of Alcalá de Henares (Madrid), Spain, were used in the study. Fat mass measures were obtained from DXA scans of all subjects. Total body fat and body fat in three subregions (trunk, arms and legs) were evaluated. Results: As opposed to males, females showed from early infancy a smaller rate of muscular mass and a larger percentage of body fat (from 10 years of age), with fat deposits being basically gynoid or peripheral. With age, females showed a greater increase in fat mass together with an accelerated loss of muscular mass. Both rates tended to level out between 51 and 65 years of age. Between the ages of 40 and 60, females exhibited significant morphological evidence of larger fat depots in their legs. Conclusions: Gender differences in the patterns of proportion and distribution of body fat, as well as in the pattern of body fat evolution, were found from early infancy. Further research is required, including assessing fat mass variables in order to unravel the dynamic of body composition and to understand the complex relationship between trunk fat mass deposits and the health risks associated with obesity.

The variations of the talar articular facets in 176 calcanei were studied and classified. Three types were considered: type A = calcanei with two articular facets for the talar head, with four subtypes; type B = calcanei with one articular facet for the talar head, and two subtypes, and type C = unique articular facies in the superior surface of the calcaneus for the talus. We found 53% (94 cases) type B calcanei and 46% (82 cases) type A calcanei. No calcanei of type C were seen.

The relations between the saccus lacrimalis and different portions of the musculus orbicularis oculi were studied in orbital regions of human fetuses sectioned into numbered series. No insertions of the pars lacrimalis or Horner’s muscle on the saccus were found. These muscular fibres pass along the dorsal wall of the saccus and are separated from it by the reflex tendon of the ligamentum palpebrale mediale. The only muscular fibres that insert on the saccus are those that approach the anterior face of the saccus and the fornix. The fibres that insert on the anterior face proceed from the deep bundles of the pars preseptalis of the lower eyelids, and those that insert on the fornix derive from the deep bundles of the pars preseptalis of the upper eyelid.

The authors have conducted a corrosion cast study of the human spleen to systematize the branches of the splenic artery and the vascular territories irrigated by them. The existence of two primary divisional or lobar branches of the splenic artery and their respective territories or lobes is confirmed. The secondary or segmental branches and their vascular territories were studied; an average of 6 segmental territories was found. These findings are compared with those reported in the literature.