Biomaterial Database

Ernst Reissner 1824--1878. 1979

C Nsamba

Ernst Reissner studied the formation of the inner ear initially using the embryos of fowls, then the embryos of mammals, mainly cows and pigs, and to a less extent the embryos of man. The embryos were placed in water for maceration and fixed in vinegar or black wax. Black wax also provided contrast and supportive blocks to enable the cutting of thin sections. Only the surface of the specimens could be studied after staining as they could not have been thin enough. By sectioning embryos at different stages, he was not only able to determine individual stages of the formation of the labyrinth and postulate its formation in man; but also to conclude that the web (the membrane) he noted in embryos is a permanent structure of the labyrinth in man.

UI	MeSH Term	Description	Entries
D007758	Ear, Inner	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.	Labyrinth,Bony Labyrinth,Ear, Internal,Inner Ear,Membranous Labyrinth,Bony Labyrinths,Ears, Inner,Ears, Internal,Inner Ears,Internal Ear,Internal Ears,Labyrinth, Bony,Labyrinth, Membranous,Labyrinths,Labyrinths, Bony,Labyrinths, Membranous,Membranous Labyrinths
D010036	Otolaryngology	A surgical specialty concerned with the study and treatment of disorders of the ear, nose, and throat.	Otology,Otorhinolaryngology,Laryngology
D004957	Estonia	A country in Eastern Europe, bordering the Baltic Sea and Gulf of Finland, between Latvia and Russia. The capital is Tallinn.
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D049672	History, 19th Century	Time period from 1801 through 1900 of the common era.	19th Century History,19th Cent. History (Medicine),19th Cent. History of Medicine,19th Cent. Medicine,Historical Events, 19th Century,History of Medicine, 19th Cent.,History, Nineteenth Century,Medical History, 19th Cent.,Medicine, 19th Cent.,19th Cent. Histories (Medicine),19th Century Histories,Cent. Histories, 19th (Medicine),Cent. History, 19th (Medicine),Century Histories, 19th,Century Histories, Nineteenth,Century History, 19th,Century History, Nineteenth,Histories, 19th Cent. (Medicine),Histories, 19th Century,Histories, Nineteenth Century,History, 19th Cent. (Medicine),Nineteenth Century Histories,Nineteenth Century History