Middle Ear Structures ofOctodon degus(Rodentia: Octodontidae), in Comparison with Those of Subterranean Caviomorphs
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چکیده
منابع مشابه
Into the dark: patterns of middle ear adaptations in subterranean eulipotyphlan mammals
Evolution of the middle ear ossicles was a key innovation for mammals, enhancing the transmission of airborne sound. Radiation into various habitats from a terrestrial environment resulted in diversification of the auditory mechanisms among mammals. However, due to the paucity of phylogenetically controlled investigations, how middle ear traits have diversified with functional specialization re...
متن کاملcomparison of blood flow velocity changes in posterior cerebral artery measured with transcranial doppler sonography in migraineurs with visual aura and normal persons after photostimulation
چکیده ندارد.
15 صفحه اولParasitism underground: determinants of helminth infections in two species of subterranean rodents (Octodontidae).
Patterns of infection among hosts in a population are often driven by intrinsic host features such as age or sex, as well as by positive or negative interactions between parasite species. We investigated helminth parasitism in 2 South American rodent species, Ctenomys australis and C. talarum (Octodontidae), to determine whether the unusual solitary and subterranean nature of these hosts would ...
متن کاملMiddle ear of human and pig: a comparison of structures and mechanics.
INTRODUCTION Animal studies are an essential method to evaluate implants for the middle ear prior to clinical studies. New Zealand rabbits, guinea pigs and chinchillas are, among other small mammals, well established animal models, but their auditory system is significantly smaller compared to human. Hence, the suitability of the domestic pig (sus scrofa domesticus) as a new animal model for re...
متن کاملRHABDOMYOSARCOMA OF THE MIDDLE EAR IN AN ADULT
The authors present a case of embryonal rhabdomyosarcoma of the middle ear in an adult patient. Computerized tomography indicated a malignant tumor and the diagnosis was confirmed by pathological analysis.
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ژورنال
عنوان ژورنال: Journal of Mammalogy
سال: 2008
ISSN: 0022-2372,1545-1542
DOI: 10.1644/07-mamm-a-401.1