Coelom

The same kind of coelom-formation as in sagitta was afterwards found by Kowalevsky in brachiopods and other invertebrates, and in the lowest vertebrate -- the amphioxus. ❋ Ernst Heinrich Philipp August Haeckel (1876)

Snails collect their metabolic wastes in the coelom - which has been reduced to a sac surrounding the heart. ❋ Unknown (2007)

I decided to see how other major dictionaries handle coelom. ❋ Unknown (2005)

It's the adjective of coelom SEE-lum, which Merriam-Webster said is "the usually epithelium-lined space between the body wall and the digestive tract of metazoans above the lower worms," which told me basically nothing. ❋ Unknown (2005)

There are reasons for supposing that the truncal coelom was at one time provided with pore-canals, but supposed vestiges of these structures have only been described for one genus, _Spengelia_, in which they lie near the anterior end of the truncal coelom. ❋ Various (N/A)

This scheme differs from the earlier one chiefly in taking into account certain advances, notably as regards the cytology of the fertilised ovum and the true nature of the coelom, which had been made in the interval of some twenty years. ❋ Unknown (N/A)

But it was not Haeckel himself who enunciated the coelom theory. ❋ Unknown (N/A)

(Worms with a coelom, probably represented at the present day by _Balanoglossus_.) * 3. ❋ Unknown (N/A)

Cardio-coelom: that part of the coelom that forms the pericardium. ❋ John. B. Smith (N/A)

Enteropneusta called the glomerulus, a vascular complex placed on either side of the anterior portion of the stomochord, projecting into the proboscis-coelom. ❋ Various (N/A)

The proboscis-pores are highly variable, and frequently only one is present, that on the left side; sometimes the pore-canals of the proboscis unite to open by a common median orifice, and sometimes their communication with the proboscis-coelom appears to be occluded, and finally the pore-canals may be quite vestigial. ❋ Various (N/A)

Spengel in his monograph of the group, [422] but when the development of the coelom came to be more thoroughly worked out in _Balanoglossus_ and ❋ Unknown (N/A)

Of these divisions of the coelom the first two communicate with the exterior by means of a pair of ciliated pore-canals placed at the posterior end of their respective segments. ❋ Various (N/A)

From the same origins as the Gastræa theory arose the theory of the coelom. ❋ Unknown (N/A)

Dissepiment: a partition wall: applied to the forming septa separating the coelom-sacs in the embryo; also the thin envelope about the members in obtect pupae. ❋ John. B. Smith (N/A)

-- Not only is the coelom thus subdivided, but the enteron (gut, alimentary canal, digestive tube) itself shows indications of three main subsections in continuity with one another: -- (1) proboscis-gut ❋ Various (N/A)

In the direct development Bateson showed that the three divisions of the coelom arise as pouches constricted off from the archenteron or primitive gut, thus resembling the development of the mesoblastic somites of _Amphioxus_. ❋ Various (N/A)

-- In correspondence with the tri-regional differentiation of the body in its external configuration, the coelom ❋ Various (N/A)

Coelom-sac: the cavity containing the viscera: in embryology one of a pair of closed sacs, arising in the mesoderm of each segment of the embryo and giving rise to more or less of the coelom of the adult. ❋ John. B. Smith (N/A)

He postulated as the far-back ancestor of Vertebrates, "an actinia-like, vermiform being, elongated in the direction of the mouth-slit" (p. 410, 1906), and derived the central nervous system from the circum-oral ring of this primitive form, the notochord from its stomodæum, and the coelom from the peripheral parts of the gastric cavity (p. 169, 1909). ❋ Unknown (N/A)