A study published in Nature Communications describes evolutionary changes in Neanderthal morphology through the analysis of their inner ear structures, known as the bony labyrinth. The research, led ...

Inner ear Is the ancient part of the ear ... Labyrinth is surrounded by perilymph and then by bone or cartilage. Perilymph cushions labyrinth and assists in transmitting vibrations in tetrapods.

The inner ear contains two fluid chambers, a membranous and a bony chamber. The membranous chamber is filled with endolymph while the bony chamber is filled with perilymph. The wall of the membranous ...

By winding itself in a spiral, the organ takes up less space. The bony chambers (purple) of the inner ear form precise geometric shapes (see Figure 4). There are five sensory epithelia in the balance ...