coelom

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coelom

 [se´lom]
body cavity, especially the cavity in the mammalian embryo between the somatopleure and splanchnopleure, which is both intra- and extraembryonic; it develops into the pleural, peritoneal, and pericardial cavities. adj., adj coelom´ic.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

coelom

also

celom

(sē′ləm)
n. pl. coeloms or coe·lomata (-lə-mä′tə, -măt′ə)
The fluid-filled cavity within the body of most multicellular animals, except some invertebrates such as flatworms and cnidarians, that lies between the body wall and the digestive tract and is formed by the splitting of the embryonic mesoderm into two layers. Also called body cavity.

coe·lom′ic (sĭ-lŏm′ĭk, -lō′mĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ce·lom

, celoma (sē'lŏm, sē-lō'mă)
1. The cavity between the splanchnic and somatic mesoderm in the embryo.
Synonym(s): coelom, coeloma.
2. Synonym(s): intraembryonic celom
3. Synonym(s): body cavity.
[G. koilōma, a hollow]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Coelomclick for a larger image
Fig. 112 Coelom . Location.

coelom

the main body cavity of most animals with three body layers, being a fluid-filled space between inner and outer layers of MESODERM. The coelom often has tubes connecting to the outside called COELOMODUCTS. In simple animals, e.g. the ANNELIDS, the coelom acts as a store for excretory products and gametes, prior to expulsion to the outside.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Most of the evaluated males and females are found in classes two and three of coelomic fat index (CFI) (Figure 5), observing an inverse relationship between the stage of gonadal maturation and this factor, more evident for females.
However, Larsen WJ [13] concluded that the paramesonephric ducts arise by craniocaudal invagination of a ribbon of thickened coelomic epithelium.
The present study measured and compared the intracoelomic pressure and the coelomic perfusion pressure in tegus by two different methods to estimate the normal values for the species.
Transcutaneous coelomic ultrasonography was a useful confirmatory diagnostic tool in this case, revealing the typical concentric rings in the transverse section of the stomach.
The testicles have an oval shape and are asymmetrically arranged within the coelomic cavity, surrounded by the small intestine and separated by the colon.
Change in the organs appears to begin from the disruption of the coelomic epithelium.
Some of the authors have proved that hCG, in early pregnancy, is found in coelomic fluid in higher levels than in maternal circulation.18,19 This data could be interpreted that we can find higher intra-uterine hCG levels than blood in abortion.
The theories for endometriosis either in common or uncommon sites include coelomic metaplasia, , tubal regurgitation, lymphatic spread and direct extension to the inguinal area10, others advocate the theory of the remnant of canal of Nuke11.
Although the etiology, pathogenesis and development of the congenital splenic cysts are not completely clear, proposed mechanisms include: involution of pluripotent cells in the splenic parenchyma during development with subsequent squamous metaplasia; entrapment of peritoneal endothelial cells or coelomic mesothelium within the developing spleen, and invagination of the surface mesothelium or dilatation of normal lymph spaces [7].
Mesothelioma is an uncommon malignancy arising from the epithelial membranes of the coelomic cavities, such as the pleura, pericardium and peritoneum.[sup.4] Malignant mesothelioma originating from the tunica vaginalis is extremely rare.
These cells stay in the body cavity, on the coelomic fluid present in the circulatory system of adults and larvae echinoderms.