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. 2015 Dec 14;5:18110. doi: 10.1038/srep18110

Figure 1. Structures and chemical compositions of endolymph of the inner ear.

Figure 1

The endolymphatic sac is connected to the cochlear and vestibular systems through the ductus reuniens (DR), the utricular duct (UD), and the saccular duct (SD) and has a different endolymphatic potential and ion and protein composition compared to those of the cochlear and vestibular systems. ESP, endolymphatic sac potential; ECP, endocochlear potential; UP, utricular potential.