The essential part of the hearing organ consists of two labyrinthine compartments: the bony labyrinthine and the membranous labyrinth. The bony labyrinth is a complex of three interconnecting cavities or spaces (COCHLEA; VESTIBULAR LABYRINTH; and SEMICIRCULAR CANALS) in the TEMPORAL BONE. Within the bony labyrinth lies the membranous labyrinth which is a complex of sacs and tubules (COCHLEAR DUCT; SACCULE AND UTRICLE; and SEMICIRCULAR DUCTS) forming a continuous space enclosed by EPITHELIUM and connective tissue. These spaces are filled with LABYRINTHINE FLUIDS of various compositions.

Descriptor ID	D007758
MeSH Number(s)	A09.246.631
Concept/Terms	Ear, Inner Ear, Inner Ears, Inner Inner Ears Inner Ear Labyrinth Labyrinths Ear, Internal Ears, Internal Internal Ear Internal Ears Membranous Labyrinth Membranous Labyrinth Labyrinth, Membranous Labyrinths, Membranous Membranous Labyrinths Bony Labyrinth Bony Labyrinth Bony Labyrinths Labyrinth, Bony Labyrinths, Bony

Below are MeSH descriptors whose meaning is more general than "Ear, Inner".

Below are MeSH descriptors whose meaning is related to "Ear, Inner".

Below are MeSH descriptors whose meaning is more specific than "Ear, Inner".