This month we have published a review on craniovascular traits and anthropology, freely available to download from the Journal of Anthropological Sciences. The article describes many vascular traits that can be analyzed on skulls, through the traces they leave on the bone surface or within the bone itself. The traces of the middle meningeal vessels, the traces of the venous sinuses, the diploic channels, and the endocranial foramina, can provide information on the vascular networks and, indirectly, on the physiological processes associated with their growth and development. The functional information available from these imprints is partial and incomplete, but it is the only one we have on blood flow when dealing with fossils, archaeological remains, or forensic cases. Methods are an issue, because of the difficulties with small samples, scoring procedure, statistics of ordinal and nominal variables, and with an intrinsic limitation in current anatomy: we still ignore the variations and processes behind many macroanatomical features, even in our own species. Previous articles on this topic deal with middle meningeal artery, vessels and thermoregulation, diploic channels, and parietal bone vascularization. Most of these papers are part of a project funded by the Wenner-Gren Foundation through an International Collaborative Research Grant, entitled “Cranial anatomy, anthropology, and the vascular system”. This beautiful drawing of a sectioned skull is by Eduardo Saiz.
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- NalediRalph Holloway and colleagues have just published a paleoneurological study of Homo naledi. They used seven cranial portions from at least five individuals to provide a general view of an endocast of this species. The study is comprehensive and very detailed, indeed. It turns out that, despite the very small endocranial volume (about 500 cc), […]
- The Presence of the Frontal Opercula in Homo nalediWhen it comes to the evolution of the human brain, size isn’t everything. In fact, shape is a huge determinant. …Continue reading →
- The Presence of the Frontal Opercula in Homo naledi
- One Gene Spurred Growth of Key Brain Area
- One Gene Spurred Growth of Key Brain Area
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- Who needs an osteologist? (Installment 50)We took the kids to Universal Studios in Orlando this week, since it was their spring break. A new Voodoo Doughnut just opened on the City Walk there, so of course we had to introduce the kids to their sugary concoctions.As we sat and ate, quickly succumbing to sugar comas, I looked up at the skeletons decorating the place, smack in the middle of the store:M […]
- Who needs an osteologist? (Installment 50)
- Researchers develop non-invasive deep brain stimulation methodResearchers at MIT have developed a new method of electrically stimulating deep brain tissues without opening the skullSince 1997, more than 100,000 Parkinson’s Disease patients have been treated with deep brain stimulation (DBS), a surgical technique that involves the implantation of ultra-thin wire electrodes. The implanted device, sometimes referred to as […]
- Researchers develop non-invasive deep brain stimulation method
- Conoce a una primatóloga: Elisabetta PalagiEntrevistamos a la primatóloga italiana Elisabetta Palagi, presidenta de la Asociación Primatológica Italiana y experta en conducta lúdica...
- Conoce a una primatóloga: Elisabetta Palagi
- On ethics, fair use and 3D printingDigitised Diseases is an online digital resource of pathological type specimens made up of more than 1600 3D models of …Continue reading →
- On ethics, fair use and 3D printing