The aim of the present study was to examine the long-term effects of prenatal injure on body and craniofacial growth in intrauterine growth retarded (IUGR) animals and its correlation with histomorphometric changes of the pituitary somatotrope population. IUGR model was carried out by means of uterine vessels ligation in pregnant rats at 14th day of pregnancy. Control and sham-operated animals ...

on the adult skull. The skull of the infant, and more so in the neonate by necessity, is immensely malleable, with the pliability of a milk carton. As a mainly cartilaginous structure at birth, the infant skull is ultraresponsive to direct molding pressures. The evolution of the neurocranium, through different growth centers, as well as the main sutural features of the skull and face are shown ...

Hedgehog (Hh) signaling plays multiple roles in the development of the anterior craniofacial skeleton. We show that the earliest function of Hh is indirect, regulating development of the stomodeum, or oral ectoderm. A subset of post-migratory neural crest cells, that gives rise to the cartilages of the anterior neurocranium and the pterygoid process of the palatoquadrate in the upper jaw, conde...

Sexual dimorphism is a widespread phenomenon and contributes greatly to intraspecies variation. Despite a long history of active research, the genetic basis of dimorphism for complex traits remains unknown. Understanding the sex-specific differences in genetic architecture for cranial traits in a highly dimorphic species could identify possible mechanisms through which selection acts to produce...

Actinopterygians (ray-finned fishes) are the most diverse living osteichthyan (bony vertebrate) group, with a rich fossil record. However, details of their earliest history during the middle Palaeozoic (Devonian) 'Age of Fishes' remains sketchy. This stems from an uneven understanding of anatomy in early actinopterygians, with a few well-known species dominating perceptions of primitive conditi...

Although the brains of the three extant lungfish genera have been previously described, the spatial relationship between the brain and the neurocranium has never before been fully described nor quantified. Through the application of virtual microtomography (μCT) and 3D rendering software, we describe aspects of the gross anatomy of the brain and labyrinth region in the Australian lungfish, Neoc...

Traumatic brain injury (TBI) is the most common cause of acquired disability and death in children. Retrospective analysis showed 350 children, 128 (36.6%) girls and 222 (63.4%) boys who were hospitalized for injury of neurocranium in a 5 year-period in Dr. Josip Bencević General Hospital in Slavonski Brod. Most of them had both contusion and commotion (46.8%), followed by just contusion of the...

The vertebrate head is a complex assemblage of cranial specializations, including the central and peripheral nervous systems, viscero- and neurocranium, musculature and connective tissue. The primary differences that exist between vertebrates and other chordates relate to their craniofacial organization. Therefore, evolution of the head is considered fundamental to the origins of vertebrates (G...

Despite continuous improvements, our knowledge of the neurocranial anatomy of sauropod dinosaurs as a whole is still poor, which is especially true for titanosaurians even though their postcranial remains are common in many Upper Cretaceous sites worldwide. Here we describe a braincase from the uppermost Cretaceous locality of ''Lo Hueco" in Spain that is one of the most complete titanosaurian ...

Between 2003 and 2005, the Peştera cu Oase, Romania yielded a largely complete early modern human cranium, Oase 2, scattered on the surface of a Late Pleistocene hydraulically displaced bone bed containing principally the remains of Ursus spelaeus. Multiple lines of evidence indicate an age of approximately 40.5 thousand calendar years before the present (approximately 35 ka 14C B.P.). Morpholo...