American Heritage® Dictionary of the English Language, Fourth Edition
- n. A complex sheet of embryonic cells in craniate vertebrates, formed by association of part of the mesoderm with the ectoderm and developing as the internal body wall.
Century Dictionary and Cyclopedia
- n. The outer one of two divisions of the mesoderm of a four-layered germ, the inner one being the splanchnopleure. A germ that is three-layered—that is, consists of an ectoderm and an endoderm, with mesoderm between them—in most animals becomes four-layered by a splitting of the mesoderm into two layers, the outer or somatopleural and the inner or splanchnopleural, separated by a space which is the body-cavity or cœlom. The somatopleure thus constitutes usually the great mass of the body, or the “fiesh and bones” of ordinary language, together with its vessels, nerves, and other special structures—not, however, including the cerebrospinal axis of a vertebrate, which is derived from an inversion of ectoderm—while the splanchnopleure forms a portion of the substance of the intestinal tract and its annexes. Also
- n. embryology A fold of tissue, in the embryo of a vertebrate, from which the walls of the body and the amnion develop.
GNU Webster's 1913
- n. (Anat.) The outer, or parietal, one of the two lamellæ into which the vertebrate blastoderm divides on either side of the notochord, and from which the walls of the body and the amnion are developed. See splanchnopleure.
- Ancient Greek body + side. (Wiktionary)
- New Latin somatopleura : somato- + Greek pleura, side. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Outside the amniotic ectoderm is a thin layer of mesoderm, which is continuous with that of the somatopleure and is connected by the body-stalk with the mesodermal lining of the chorion.”
“In reptiles, birds, and many mammals the amnion is developed in the following manner: At the point of constriction where the primitive digestive tube of the embryo joins the yolk-sac a reflection or folding upward of the somatopleure takes place.”
“The lateral leaves of somatopleure then grow round on each side, and, meeting on the ventral aspect of the allantois, enclose the vitelline duct and vessels, together with a part of the extra-embryonic celom; the latter is ultimately obliterated.”
“By the forward growth and flexure of the head the pericardial area and the anterior portions of the primitive aortæ are folded backward on the ventral aspect of the fore-gut, and the original relation of the somatopleure and splanchnopleure layers of the pericardial area is reversed.”
“The lateral mesoderm splits into two layers, an outer or somatic, which becomes applied to the inner surface of the ectoderm, and with it forms the somatopleure; and an inner or splanchnic, which adheres to the entoderm, and with it forms the splanchnopleure (Fig. 16).”
These user-created lists contain the word ‘somatopleure’.
Words to quiz the intermediate and advanced speller alike
A list of words that begin with or contain the string pleur.
Some of the medical terms and conditions listed here aren't all that pretty.
Words I missed when practicing for the Spelling Bee
Looking for tweets for somatopleure.