Results 31 to 40 of about 23,011 (327)

Histological Changes of the Middle Ear Ossicles Harvested During Cholesteatoma Surgery

open access: yesActa Medica, 2016
Background: In the cholesteatoma surgery ossicles can be replaced to reconstruct middle ear function. It is important that these ossicles are free of squamous epithelium, to prevent residual disease. This study focuses on the histological findings of the
Lukáš Školoudík   +3 more
doaj   +1 more source

Mechanical effect of reconstructed shapes of autologous ossicles on middle ear acoustic transmission

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Conductive hearing loss is caused by a variety of defects, such as chronic otitis media, osteosclerosis, and malformation of the ossicles. In such cases, the defective bones of the middle ear are often surgically reconstructed using artificial ossicles ...
Takumi Asakura   +6 more
doaj   +1 more source

Crinoid phylogeny: a preliminary analysis (Echinodermata: Crinoidea) [PDF]

open access: yes, 2004
We describe the first molecular and morphological analysis of extant crinoid high-level inter-relationships. Nuclear and mitochondrial gene sequences and a cladistically coded matrix of 30 morphological characters are presented, and analysed by ...
Ameziane, N.   +3 more
core   +2 more sources

Human auditory ossicles as an alternative optimal source of ancient DNA

open access: yesbioRxiv, 2019
DNA recovery from ancient human remains has revolutionized our ability to reconstruct the genetic landscape of the past. Ancient DNA research has benefited from the identification of skeletal elements, such as the cochlear part of the osseous inner ear ...
K. Sirak   +38 more
semanticscholar   +1 more source

Multispecies leatherback turtle assemblage from the Oligocene Chandler Bridge and Ashley formations of South Carolina, USA [PDF]

open access: yesActa Palaeontologica Polonica, 2020
Paleogene dermochelyid species richness far exceeded that of today. Leatherback sea turtles were most species rich in the Paleogene, but their richness declined sharply during the Neogene with only one species existing today, Dermochelys coriacea.
Bailey R. Fallon   +1 more
doaj   +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

On the development of the chondrocranium and the histological anatomy of the head in perinatal stages of marsupial mammals [PDF]

open access: yes, 2017
An overview of the literature on the chondrocranium of marsupial mammals reveals a relative conservatism in shape and structures. We document the histological cranial anatomy of individuals representing Monodelphis domestica, Dromiciops gliroides ...
Forasiepi, Analia Marta   +1 more
core   +4 more sources

Evaluation on Shear Bond Strength of Different Glass Ionomer and Hydroxy Apatite Cements Used in Ossiculoplasty

open access: yesBalkan Medical Journal, 2015
Background: Glass ionomer cements (GIC) have been widely used in dentistry for many years. In recent years, GIC have also been used for ossiculoplasty.
M. Tayyar Kalcıoğlu   +5 more
doaj   +1 more source

Tissue-specific calibration of extracellular matrix material properties by transforming growth factor-beta and Runx2 in bone is required for hearing [PDF]

open access: yes, 2010
Publisher version: http://www.nature.com/embor/journal/v11/n10/full/embor2010135.htmlDA - 20100917 IS - 1469-3178 (Electronic) IS - 1469-221X (Linking) LA - ENG PT - JOURNAL ARTICLEDA - 20100917 IS - 1469-3178 (Electronic) IS - 1469-221X (Linking) LA ...
Alexandra E Porter   +21 more
core   +1 more source

Dual cervical ossicles.

open access: yesThe Pan African medical journal, 2022
A 29-year-old male, involved in a motorcycle accident 10-days prior and referred from a private hospital, presented with a history of abdominal pain, distension, and vomiting. On presentation, he was conscious, oriented, tachycardic with a heart rate of 112 beats/min, systolic blood pressure of 115 mmHg, tachypneic with a respiratory rate of 24/min ...
openaire   +3 more sources

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