Sclerotome

(redirected from sclerotomes)
Also found in: Dictionary, Medical.

sclerotome

[′skler·ə‚tōm]
(embryology)
The part of a mesodermal somite which enters into the formation of the vertebrae.
(medicine)
A knife used in sclerotomy.
(vertebrate zoology)
The fibrous tissue separating successive myotomes in certain lower vertebrates.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sclerotome

 

in chordate (including human) embryos, the inferior internal portion of a primary segment, or somite. A sclerotome consists of skeletogenous mesenchyma, which during embryonic development separates from the somite, surrounds the cord and the central nervous system, and forms an axial skeleton; in fish the skeleton of the paired fins is also formed by the mesenchyma.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
(1) The vertebral column is derived from the sclerotomes of somites.
DISCUSSION: The vertebral column develops from paired somites, each composed of a dermatome, myotome and sclerotome. They arise initially in cervical region (4thweek), increasing in number cranio-caudally.
The last theory was probably proposed to explain the common occurrence of this disorder in particular sclerotomes.
Several patterns of melorheostosis have been described including the monostotic (involving one bone), polyostotic (involving multiple bones) and the most common monomelic (involving one limb).Within a limb, melorheostosis is usually confined to a single sclerotome and even within a particular sclerotome, the lesions may cross the joint space to involve bones on either side but the intervening joint is usually not involved (5).
The somites are divided into three parts: Ventromedial sclerotome; Intermediate myotome; and Lateral dermatome.