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Encyclopedia > Corneal epithelium
Corneal epithelium
Vertical section of human cornea from near the margin. (Waldeyer.) Magnified.
1. Epithelium.
2. Anterior elastic lamina.
3. substantia propria.
4. Posterior elastic lamina.
5. Endothelium of the anterior chamber.
a. Oblique fibers in the anterior layer of the substantia propria.
b. Lamellæ the fibers of which are cut across, producing a dotted appearance.
c. Corneal corpuscles appearing fusiform in section.
d. Lamellæ the fibers of which are cut longitudinally.
e. Transition to the sclera, with more distinct fibrillation, and surmounted by a thicker epithelium.
f. Small blood vessels cut across near the margin of the cornea.
[[Image:|250px|center|]]
Latin e. anterius corneae
Gray's subject #225 1007
System
Precursor
MeSH A09.371.060.217.325
Dorlands/Elsevier e_13/12339086

The corneal epithelium (epithelium corneæ anterior layer) covers the front of the cornea and consists of several layers of cells. The Bowmans membrane is a smooth layer in the eye. ... A basement membrane that lies between the proper substance and the endothelial layer of the cornea; posterior limiting layer of the cornea. ... The endothelium is the layer of thin, flat cells that lines the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall. ... The anterior chamber if the fluid-filled space inside the eye between the iris and the corneas innermost surface, the endothelium . ... The cornea is the curved, transparent layer that covers the front part of the eye and protects its inner structures. ... Fusiform is a spindle-like shape that tapers at both ends. ... The sclera is the white outer coating of the eye. ... In zootomy, epithelium is a tissue composed of a layer of cells. ... The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber, providing most of an eyes optical power [1]. Together with the lens, the cornea refracts light and, as a result, helps the eye to focus. ... Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ... In biology, an organ is a group of tissues which perform some function. ... Embryology is the branch of developmental biology that studies embryos and their development. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Elseviers logo Elsevier, the worlds largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. ... The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber, providing most of an eyes optical power [1]. Together with the lens, the cornea refracts light and, as a result, helps the eye to focus. ...


The cells of the deepest layer are columnar; then follow two or three layers of polyhedral cells, the majority of which are prickle cells similar to those found in the stratum mucosum of the cuticle.


Lastly, there are three or four layers of squamous cells, with flattened nuclei. Squamous means covered with or formed of scales; scaly. ... Plural: nuclei In chemistry and physics, the nucleus (atomic nucleus) is the collection of protons and neutrons in the center of an atom that carries the bulk of the atoms mass and positive charge. ...


Disorders

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. Recurrent corneal erosion is a disorder of the eyes characterized by the failure of the corneas outermost layer of epithelial cells to attach to the underlying basement membrane (Bowmans membrane). ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


  Results from FactBites:
 
Expression of a Single Pair of Desmosomal Glycoproteins Renders the Corneal Epithelium Unique Amongst Stratified ... (4937 words)
in bovine corneal, limbal, and conjunctival epithelium and desmosomal
that Dsg3 is absent from bovine corneal epithelium.
Immunofluorescence for Dsc2 and Dsg2 in corneal epithelium was
Facts About the Cornea and Corneal Disease [NEI Health Information] (5763 words)
The epithelium functions primarily to: (1) Block the passage of foreign material, such as dust, water, and bacteria, into the eye and other layers of the cornea; and (2) Provide a smooth surface that absorbs oxygen and cell nutrients from tears, then distributes these nutrients to the rest of the cornea.
The part of the epithelium that serves as the foundation on which the epithelial cells anchor and organize themselves is called the basement membrane.
A corneal dystrophy is a condition in which one or more parts of the cornea lose their normal clarity due to a buildup of cloudy material.
  More results at FactBites »


 

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