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Inner ear regeneration is the biological process by which the hair cells and supporting cells (i.e. Hensen's cells and Deiters cells) of the ear proliferate (cell proliferation) and regrow after hair cell injury. This process depends on communication between supporting cells and the brain.
In the apical surface, there are free enlarged poles found in the Hensen's cells, the cytoplasm of the cells is a little more dense in the apical surface than the cells in the basal coil. The enlarged poles in the cells which nearly fill the cytoplasm are lipid droplets, which are noticeable at the third and forth turns of the cochlea, the ...
In this study, scientists used zebrafish to examine the motion of proteins within live ear cells using a confocal microscope. This has shown that proteins in stereocilia move quickly, indicating that the movement of the proteins within the hair cells may be a very important factor to maintaining the integrity of the hair bundles in the inner ear.
Unlike birds and fish, humans and other mammals are generally incapable of regrowing the cells of the inner ear that convert sound into neural signals when those cells are damaged by age or disease. [ 6 ] [ 24 ] Researchers are making progress in gene therapy and stem-cell therapy that may allow the damaged cells to be regenerated.
Inner ear (7 P) M. Middle ear (1 C, 6 P) O. Otology (5 C, 78 P) V. Vestibular system (1 C, 20 P) Pages in category "Ear" ... Inner ear regeneration; Intertragic notch; L.
The inner ear (internal ear, auris interna) is the innermost part of the vertebrate ear. In vertebrates , the inner ear is mainly responsible for sound detection and balance. [ 1 ] In mammals , it consists of the bony labyrinth , a hollow cavity in the temporal bone of the skull with a system of passages comprising two main functional parts: [ 2 ]
As does any object facing a sound, the ear acts as a passive filter, although the inner ear is not an absolute passive filter because the outer hair cells provide active mechanisms. A passive filter is a low pass : the high frequencies are more absorbed by the object because high frequencies impose a higher pace of compression-decompression to ...
The utricle and saccule are the two otolith organs in the vertebrate inner ear. The word utricle comes from Latin uter 'leather bag'. The utricle and saccule are part of the balancing system ( membranous labyrinth ) in the vestibule of the bony labyrinth (small oval chamber). [ 1 ]