Pseudocoelom - metazoa, Biology

Pseudocoelom - Metazoa

The platyhelminths which do not have a body cavity surrounding the gut, have a solid type of body constitution. The mesoderm completely fills the space between body wall and alimentary canal in the form of a network of cells called parenchyma. Such animals are called acoelomates. In nematodes, there is a different situation:

675_Pseudocoelom.png

Figure:  Section of (a) acoelomates (b) pseudocoelomates

the mesoderm is confined to specific circumscribed regions within the body cavity, and this cavity is neither lined nor filled with mesoderm. The cavity is in fact a persistent blastocoel of the embryo and is called pseudocoel. The internal organs are free within the pseudocoel. The body cavity has no lining of peritoneum derived from mesoderm. Animals so constructed are called pseudocoelomates.

Posted Date: 1/15/2013 2:13:58 AM | Location : United States







Related Discussions:- Pseudocoelom - metazoa, Assignment Help, Ask Question on Pseudocoelom - metazoa, Get Answer, Expert's Help, Pseudocoelom - metazoa Discussions

Write discussion on Pseudocoelom - metazoa
Your posts are moderated
Related Questions
What is plant cell walls made of? Explain the function of cell walls? Plant cell walls are made of cellulose embedded in carbohydrates and proteins. Cell walls help su

Pathophysiology   The exact mechanism of glomerulonephritis  is still under investigation. The dies'ease is characterised by deposition  of immune complexes  consisting of anti

What is Lactate Lactate is transported to  the liver in  the Cori cycle (lactic  acid cycle)  and is converted to pyruvate. Hepatic gluconeogenesis then converts  lactate  ba

Q. How is the striped pattern of the striated muscle cells formed? The functional units of the muscle fibers are the sarcomeres within the sarcomeres blocks of myosin and actin

Anaplasia - Characteristics Define Cancer Anaplasia is a structural abnormality where cells resemble primitive or embryonic tissue in which adult functions are diminished or t

Prevention of flap dehiscence Flap margin dehiscence (separation) is prevented by approximating the edges of the flap over healthy bone by handling the edges of the flap gently

Human lungs A pair of spongy, elastic and bag like structures of lungs is present in the chest cavity, one on either side of the heart. Lungs are enclosed by a double lay

Control of Pollution We have seen that pollution affects human health, 'vegetation, crop yield, trees, fisheries, forests, buildings, archaeological monuments, tourism. These


What are X-linked traits? The X-linked traits are the phenotypical traits conditioned by genes located in the nonhomologous (heterologous) portions of the X chromosome.