Results 31 to 40 of about 344,405 (242)

Evaluation of the middle ear in water buffaloes (Bubalus bubalis) by gross anatomy and cone-beam computed tomography

open access: yesFolia Morphologica, 2021
BACKGROUND: The purpose of this study was to provide a description of gross middle ear morphology in water buffaloes, augmented with additional data on the osseous structures of middle ear derived from cone-beam computed tomography (CBCT).
J. Nourinezhad   +4 more
doaj   +1 more source

Middle ear innovation in Early Cretaceous eutherian mammals

open access: yesNature Communications, 2023
The middle ear ossicles in modern mammals are repurposed from postdentary bones in non-mammalian cynodonts. Recent discoveries by palaeontological and embryonic studies have developed different models for the middle ear evolution in mammaliaforms ...
Haibing Wang, Yuanqing Wang
doaj   +1 more source

Micro-endoscopic ear anatomy of guinea pig applied to experimental surgery [PDF]

open access: yesActa Cirúrgica Brasileira, 2014
PURPOSE: To describe topographic and endoscopic anatomy of guinea pig ear for development of surgical approaches in experimental studies. METHODS: Experimental study. Eight adult guinea pigs (Cavia porcellus) were used in this study.
Bruno Borges de Carvalho Barros   +6 more
doaj   +1 more source

Evaluation of Recurrence and Hearing Outcome for Inactive Squamosal Disease after Cartilage Strengthening Tympanoplasty

open access: yesInternational Archives of Otorhinolaryngology, 2022
Introduction Inactive squamosal disease is unique for having a conflicting treatment protocol, with an age-old debate between early surgical intervention or keeping patients in a long-term follow-up. The shifting paradigm is early intervention to prevent
Priyanshi Gupta   +4 more
doaj   +1 more source

Hox-A2 protein expression in mouse embryo middle ear ossicles.

open access: yesMorphologie : bulletin de l'Association des anatomistes, 2018
The origin of the mammalian middle ear ossicles from mandibular and hyoid pharyngeal arches remains controversial and discussed. Two adverse theories are proposed.
S. Louryan   +3 more
semanticscholar   +1 more source

Automastoidectomy — a case report

open access: yesThe Egyptian Journal of Otolaryngology, 2023
Background Automastoidectomy denotes extensive destruction of the middle ear cavity and the mastoid air cells, mimicking the appearance of a reminiscent image of the post-mastoidectomy cavity.
Khalid Mahmoud Sayed Seedahmed   +2 more
doaj   +1 more source

In Vivo Measurement of Ear Ossicle and Bony Wall Vibration by Sound Stimulation of Cartilage Conduction

open access: yesAudiology Research, 2023
The cartilage-conduction pathway was recently proposed as a third auditory pathway; however, middle-ear vibrations have not yet been investigated in vivo.
Hiroaki Yazama   +5 more
doaj   +1 more source

A Systematic Study of GelMA‐Carbopol Bioinks for High‐Fidelity Extrusion 3D Bioprinting at Physiological Temperatures

open access: yesAdvanced Healthcare Materials, EarlyView.
Gonzalez Martinez and collaborators develop a strategy to formulate high performance GelMA‐based bioinks with low solids contents. The resulting bioinks enable 3D bioprinting at 37 °C of high‐fidelity structures with tunable mechanical properties that support high cell viability and function.
David A. González‐Martínez   +8 more
wiley   +1 more source

Comparative anatomy of the middle ear ossicles of extant hominids--Introducing a geometric morphometric protocol.

open access: yesJournal of Human Evolution, 2016
The presence of three interconnected auditory ossicles in the middle ear is a defining characteristic of mammals, and aspects of ossicle morphology are related to hearing sensitivity.
A. Stoessel   +3 more
semanticscholar   +1 more source

A Novel Drug‐Loaded Porous Parylene Electrode for Targeted Anti‐Inflammatory Therapy and Hearing Preservation in Cochlear Implantation

open access: yesAdvanced Healthcare Materials, EarlyView.
A porous parylene‐coated electrode loaded with dexamethasone was developed to reduce inflammation after cochlear implantation. In guinea pigs, the device provided sustained drug release, maintained biocompatibility, improved auditory brainstem response thresholds, and reduced inflammatory cell infiltration and TNF‐α expression.
Chi‐Chieh Chang   +11 more
wiley   +1 more source

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