BIOMAT Database Logo BIOMAT Database Logo

Microvascular system of the human fetal inner ear: a scanning electron microscopic study of corrosion casts. 1993

A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Laboratory of Scanning Electron Microscopy, Copernicus Medical Academy, Kraków, Poland.

The vascular system of the inner ear was investigated in 18-21 weeks old human fetuses, using the corrosion cast technique in scanning electron microscopy. At that developmental stage, vascularization of the cochlea and semicircular canals shows a pattern very similar to that described for adults. The most important differences which can be regarded as fetal features include: (1) denser limbus vessels, (2) the marginal vessels of the spiral lamina appearing as irregular network which shows a less clear arcade-like arrangement, (3) some radiating arterioles of the spiral lamina and marginal vessels possessing connections with the vascular system of the external wall, and (4) a dense, sinusoidal network of draining venules at scala tympani. These features apparently disappear during the final remodelling of the inner ear microvasculature in the last trimester.

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
D008297 Male Males
D008833 Microcirculation The circulation of the BLOOD through the MICROVASCULAR NETWORK. Microvascular Blood Flow,Microvascular Circulation,Blood Flow, Microvascular,Circulation, Microvascular,Flow, Microvascular Blood,Microvascular Blood Flows,Microvascular Circulations
D008855 Microscopy, Electron, Scanning Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY. Scanning Electron Microscopy,Electron Scanning Microscopy,Electron Microscopies, Scanning,Electron Microscopy, Scanning,Electron Scanning Microscopies,Microscopies, Electron Scanning,Microscopies, Scanning Electron,Microscopy, Electron Scanning,Microscopy, Scanning Electron,Scanning Electron Microscopies,Scanning Microscopies, Electron,Scanning Microscopy, Electron
D001808 Blood Vessels Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins). Blood Vessel,Vessel, Blood,Vessels, Blood
D005260 Female Females
D005333 Fetus The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN. Fetal Structures,Fetal Tissue,Fetuses,Mummified Fetus,Retained Fetus,Fetal Structure,Fetal Tissues,Fetus, Mummified,Fetus, Retained,Structure, Fetal,Structures, Fetal,Tissue, Fetal,Tissues, Fetal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D016319 Corrosion Casting A tissue preparation technique that involves the injecting of plastic (acrylates) into blood vessels or other hollow viscera and treating the tissue with a caustic substance. This results in a negative copy or a solid replica of the enclosed space of the tissue that is ready for viewing under a scanning electron microscope. Casting, Corrosion,Castings, Corrosion,Corrosion Castings

Related Publications

A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Hyaloid vessels of the human fetal eye. A scanning electron microscopic study of corrosion casts.
November 1993, Archives of ophthalmology (Chicago, Ill. : 1960),
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Microvascular system of the rat incisor enamel organ. A scanning electron microscopic study of vascular corrosion casts.
December 1998, European journal of oral sciences,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Microvascular architecture of the rabbit eye: a scanning electron microscopic study of vascular corrosion casts.
September 2008, The Journal of veterinary medical science,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Microvascular architecture of the rabbit ventricular walls: a scanning electron microscopic study of corrosion casts.
January 1982, Scanning electron microscopy,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Microvasculature of the corpus epididymis of canis familiaris. A scanning electron microscopic study of microvascular corrosion casts.
January 2001, Italian journal of anatomy and embryology = Archivio italiano di anatomia ed embriologia,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Pancreatic islet microcirculation: a scanning electron microscopic study of corrosion casts.
June 1997, Transplantation proceedings,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Blood vascular organization of the human appendix: a scanning electron microscopic study of corrosion casts.
March 1988, The Tohoku journal of experimental medicine,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Human kidney glomeruli, with special reference to those in the aged person: scanning electron microscopic study of microvascular corrosion casts.
August 1987, Acta medica Okayama,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
The microvascular architecture of the choroid plexus in fetal human brain lateral ventricle: a scanning electron microscopy study of corrosion casts.
September 2008, Journal of anatomy,
A J Miodoński, and J Gorczyca, and M Nowogrodzka-Zagórska, and J A Litwin, and J Składzień
Scanning electron microscopy of the microvascular system in the inner ear.
January 1986, Scanning electron microscopy,
Copied contents to your clipboard!