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]

The inner ear is found in all vertebrates, with substantial variations in form and function. The inner ear is innervated by the eighth cranial nerve in all vertebrates.

The bony labyrinth , or osseous labyrinth, is the network of passages with bony walls lined with periosteum . The membranous labyrinth runs inside of the bony labyrinth. There is a layer of perilymph fluid between them. The three parts of the bony labyrinth are the vestibule of the ear , the semicircular canals , and the cochlea .

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]

The inner ear is found in all vertebrates, with substantial variations in form and function. The inner ear is innervated by the eighth cranial nerve in all vertebrates.

The bony labyrinth , or osseous labyrinth, is the network of passages with bony walls lined with periosteum . The membranous labyrinth runs inside of the bony labyrinth. There is a layer of perilymph fluid between them. The three parts of the bony labyrinth are the vestibule of the ear , the semicircular canals , and the cochlea .

The research group, led by Professor Ivan Vartanyants from MEPhI, has applied the recently developed method of ptychographic to photonic crystals . The method's essence is that the substance is illuminated by X-ray radiation of an exactly defined wave. Sources of such radiation are called synchrotrons, and the experiments were conducted at DESY in Germany.

"With conventional X-rays you can scan either macroscopic or very ordered structures. In our case, for structures of polystyrene spheres of nearly micron size, the accuracy of the image will be even worse than in fluoroscopy. At least, it won't be possible to discern a single object [smaller] than a micron," said Ilya Besedin.

Thanks to such a high quality X-ray, Ilya Besedin and his colleagues have managed to observe the structures of crystals ordered at a scale of tens and hundreds of nanometers. Most importantly, scientists have managed to identify internal defects of mesoscopic structures.


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