Results 31 to 40 of about 8,789 (231)

Analysis of Vestibular Labyrinthine Geometry and Variation in the Human Temporal Bone

open access: yesFrontiers in Neuroscience, 2018
Stable posture and body movement in humans is dictated by the precise functioning of the ampulla organs in the semi-circular canals. Statistical analysis of the interrelationship between bony and membranous compartments within the semi-circular canals is
Lejo Johnson Chacko   +18 more
doaj   +1 more source

Synchrotron scanning reveals the palaeoneurology of the head-butting Moschops capensis (Therapsida, Dinocephalia) [PDF]

open access: yesPeerJ, 2017
Dinocephalian therapsids are renowned for their massive, pachyostotic and ornamented skulls adapted for head-to-head fighting during intraspecific combat.
Julien Benoit   +4 more
doaj   +2 more sources

Tullio phenomenon in superior semicircular canal dehiscence (SSCD) [PDF]

open access: yes, 2015
A 68-year-old woman presented with worsening sound-induced vertigo (Tullio phenomenon) and left-sided hearing loss. Weber's test lateralised to the affected ear and audiography confirmed mild conductive hearing loss.
Grech, Reuben, Pullicino, Richard
core   +1 more source

Functional anatomy of the middle and inner ears of the red fox, in comparison to domestic dogs and cats

open access: yes, 2020
Anatomical middle and inner ear parameters are often used to predict hearing sensitivities of mammalian species. Given that ear morphology is substantially affected both by phylogeny and body size, it is interesting to consider whether the relatively ...
Burda, H., Malkemper, E., Mason, M.
core   +1 more source

Giant petrous bone cholesteatoma: combined microscopic surgery and an adjuvant endoscopic approach [PDF]

open access: yes, 2016
Petrous bone cholesteatomas (PBCs) are epidermoid cysts, which have developed in the petrous portion of the temporal bone and may be congenital or acquired.
Iannella, Giannicola   +4 more
core   +1 more source

Endocast and Bony Labyrinth of a Devonian “Placoderm” Challenges Stem Gnathostome Phylogeny [PDF]

open access: yesCurrent Biology, 2021
Our understanding of the earliest evolution of jawed vertebrates depends on a credible phylogenetic framework for the jawed stem gnathostomes collectively known as "placoderms".1 However, their relationships, and whether placoderms represent a single radiation or a paraphyletic array, remain contentious.2-13 This uncertainty is compounded by an uneven ...
You-an Zhu   +7 more
openaire   +2 more sources

Semicircular canals in Anolis lizards: ecomorphological convergence and ecomorph affinities of fossil species [PDF]

open access: yesRoyal Society Open Science, 2017
Anolis lizards are a model system for the study of adaptive radiation and convergent evolution. Greater Antillean anoles have repeatedly evolved six similar forms or ecomorphs: crown-giant, grass-bush, twig, trunk, trunk-crown and trunk-ground.
Blake V. Dickson   +3 more
doaj   +1 more source

Anatomy of the Nasal and Auditory Regions of the Fossil Lagomorph Palaeolagus haydeni: Systematic and Evolutionary Implications

open access: yesFrontiers in Ecology and Evolution, 2021
Palaeolagus, a late Eocene to early Miocene North American lagomorph genus, represented by numerous and well-preserved specimens, has been long considered a basal leporid, although it is currently understood as a stem lagomorph.
Irina Ruf   +4 more
doaj   +1 more source

Novel Endocranial Data on the Early Therocephalian Lycosuchus vanderrieti Underpin High Character Variability in Early Theriodont Evolution

open access: yesFrontiers in Ecology and Evolution, 2020
Therocephalia is one of the major therapsid clades and ranges from the middle Permian to Middle Triassic. The earliest therocephalians were large-bodied predators whose fossils are common in middle Permian rocks of South Africa, but have received little ...
Luisa C. Pusch   +8 more
doaj   +1 more source

Digital reconstruction of the inner ear of Leptictidium auderiense (Leptictida, Mammalia) and North American leptictids reveals new insight into leptictidan locomotor agility [PDF]

open access: yes, 2016
Leptictida are basal Paleocene to Oligocene eutherians from Europe and North America comprising species with highly specialized postcranial features including elongated hind limbs. Among them, the European Leptictidium was probably a bipedal runner or
A Christian   +86 more
core   +2 more sources

Home - About - Disclaimer - Privacy