PURPOSE To investigate the development and mineralization of avian scleral ossicles using fluorescence microscopy in combination with field emission scanning electron microscopy (FESEM) and energy dispersive spectroscopy (EDS). METHODS The anterior halves of whole eyeballs from chickens on embryonic (E) days E10 to E21 and Japanese quail on embryonic days E8 to E17 were fixed in 100% methanol...

The middle ear ossicles are important due to transmission of sound to the inner ear leading to sound understanding. The aim of present study was to determine the anatomical and morphometrical aspects of middle ear ossicles in Makouei sheep fetuses. For this experimental study, eight sheep fetuses at the age of 2 to 3 months were provided from public slaughterhouse; their middle ear ossicles wer...

A reexamination of the scierai ossicles of sceloporine iguanids was undertaken after conflicting data sets were discovered in the literature. The scierai ossicles of certain other iguanids were also studied for comparative purposes. Sceloporines exhibit much greater variation in ossicle configuration than has previously been reported. This variation is often too great within genera and species ...

Renal ossicles are ossified structures developed after the implantation of a bone marrow (BM) plug beneath the kidney capsule. The authors have investigated the origin of the hematopoietic cells in murine renal ossicles by conducting sex-mismatched implants into Ly-5 congenic mice. BM plugs from transgenic mice provided additional genotypic tracers. Flow cytometry analyses on nonadherent cells ...

BACKGROUND High hydrostatic pressure (HHP) treatment can eliminate cholesteatoma cells from explanted human ossicles prior to re-insertion. We analyzed the effects of HHP treatment on the microbial flora on ossicles and on the planktonic and biofilm states of selected isolates. METHODOLOGY Twenty-six ossicles were explanted from cholesteatoma patients. Five ossicles were directly analyzed for...

Like the classical study of medical papyri, paleopathology uncovers interesting facts concerning ear diseases in ancient Egypt. Three paleopathologic sources are available for the study of ancient otologic disorders: skulls, mummified heads, and middle ear ossicles, all of which will be reviewed in this article. At the beginning of the 20th century, the first studies of skulls with mastoiditis ...

The middle ear ossicles are important due to transmission of sound to the inner ear leading to sound understanding. The aim of present study was to determine the anatomical and morphometrical aspects of middle ear ossicles in Makouei sheep fetuses. For this experimental study, eight sheep fetuses at the age of 2 to 3 months were provided from public slaughterhouse; their middle ear ossicles wer...

The use of genetically modified mice can accelerate progress in auditory research. However, the fundamental profile of mouse hearing has not been thoroughly documented. In the current study, we explored mouse middle ear transmission by measuring sound-evoked vibrations at several key points along the ossicular chain using a laser-Doppler vibrometer. Observations were made through an opening in ...

We used micro computed tomography to produce a high-resolution density image of the lobster (Panulirus interruptus) stomach and identified on this image the previously defined stomach ossicles. These data are the first coordinate-based, three-dimensional description of the stomach and are a necessary first step for developing biomechanical models of it. They are also interesting for several rea...