Beside the perivisceral cavity and its fluid there is a special circulatory system.
Between these and the intestine is a cavity--the perivisceral cavity--like that of our own bodies, but filled with a nutritive fluid like our lymph.
It had apparently the perivisceral cavity and nephridia of the schematic worm, and a circulatory system.
Within the muscles is the perivisceral cavity, and in its central axis the intestine, segmented like the body-wall.
Between these two was theperivisceral cavity, filled with nutritive fluid, lymph, and furnishing a safe lodging-place for the more delicate viscera.
The circles containing dots represent eggs floating in theperivisceral fluid.
The excretory system consists of a pair of tubes discharging through the sides of the body-wall, and having each a ciliated, funnel-shaped opening in the perivisceral cavity.
The perivisceral cavity, formed perhaps by cutting off and enlarging the lateral pouches of the turbellarian digestive system, serves as a very simple but serviceable circulatory system.
Scattered over the upper surface of the pericardial diaphragm are groups of cells, similar to the fat-masses of the perivisceral space.
The fat-body is in reality, as development shows, the irregular cellular wall of the cœlom, or perivisceral space.
The cavities of all the somites unite to form a common cavity, the cœlom or perivisceral space of the Cockroach.
What becomes of it in the end we do not know for certain, but conjecture that it escapes by the blood which bathes the perivisceral cavity, that it is taken up again by the Malpighian tubules, and is finally discharged into the intestine.
From the perivisceralspace the blood enters the pericardial sinus by the apertures in its floor, and returns thence by the lateral inlets into the heart.
There are no absorbent vessels properly so called, and Plateau has long thought that the products of digestion pass by osmosis directly through the walls of the digestive tube, to mix with the blood in the perivisceral space.
These lie in the perivisceral space, between the somatic and splanchnic layers of the mesoblast, and on the sides of the abdomen.
The perivisceral fluid is aerated through outpocketings of the thin body-wall which extend outward between the calcareous plates of the body.
In addition to the fluid in the water-vascular system there is yet another body-fluid, the perivisceral fluid, which bathes all of the tissues and fills the body-cavity.
Take a drop of the perivisceral fluid from a living starfish and examine under high power of microscope, noting the amoeboid cells it contains.
In this genus it develops no perivisceral portion, as in other groups, but gives rise solely to the nephridia and to the reproductive organs.
With regard to this ventral portion of the coelom in Vertebrata, it is to be noticed that the cavity in it never becomes divided up, but always remains continuous, forming the perivisceral portion of the coelom.
This explanation derives some support from the fact that even in animals in which the coelom is at its first appearance wholly segmented, it frequently happens that in the adult the perivisceral portion of it is unsegmented, i.
Nearly a quarter of a century ago I recognised the fact that the uterine organs of the adult worm almost completely filled up the perivisceral cavity, and that they were crowded with microscopic worms.
In like manner I have myself had watery suffusion of the eyes (when collecting the perivisceral fluid for Marcet’s analyses: see Bibliog.
Having in a direct manner gained access to the perivisceral cavity of Cyclops, they remain coiled within the intermediate bearer until it has been pursued, captured, and transferred to the stomach of the ultimate or piscine host.
At this stage, also, incompletely developed Cercariæ may be seen in the perivisceral cavity.
There is an axial cavity in the tentacles which, unlike the cavity in the tentacles of the Polyzoa, does not communicate with the perivisceral cavity.
There is a perivisceral cavity, and the body walls are traversed by excretory tubes.
It arises long before any of the other tentacles as a single anterior prolongation of the prae-oral lobe containing a parenchymatous cavity, which communicates freely with the general perivisceral cavity.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "perivisceral" in a variety of sentences. We hope that you will now be able to make sentences using this word.
