It is commonly found in the form of spherules of radial fibers.

Some of the radial fiber bundles are myelinated (Fig.

A radial fiber bundle acts as an intermediary between Type I neurons and inner hair cells.

Strong fibers run along the menisci from one attachment to the other, while weaker radial fibers are interlaced with the former.

Most interestingly, there is no increase in radial fiber spacing in the apex, a specific problem of BDNF null mutants [ 6 13 ] .