Pseudocoelom - metazoa, Biology

Assignment Help:

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.


Related Discussions:- Pseudocoelom - metazoa

Oogenesis, Oogenesis  The process of formation of ova in the ovary is c...

Oogenesis  The process of formation of ova in the ovary is called as oogenesis. The germ cells are found in the form of germinal epthelium around the ovary.These cells are d

Explain rectangular full mucoperiosteal flaps, Explain Rectangular Full Muc...

Explain Rectangular Full Mucoperiosteal Flaps - Endodontic Surgery      a. Releasing and relaxing "vertical" incisions, with the Horizontal incision, b. Causes re

Define the term - peroxisomes and glyoxisomes, Peroxisomes and Glyoxisomes ...

Peroxisomes and Glyoxisomes A number of metabolic reactions, such as, the oxidation of amino acids and lipids result in the production of hydrogen peroxide. As hydrogen peroxid

Alkaloids, Miscellaneous antinutritional substances Alkaloids: Alkal...

Miscellaneous antinutritional substances Alkaloids: Alkaloids represent a large and structurally diverse group of compounds present within angiosperm plants; the majority of

Explain about the paediatric and psychological specialists, Explain about t...

Explain about the paediatric and psychological specialists What is not controversial is the fact that paediatric and psychological specialists frequently encounter infants and

Derive gorlin formula, Q. Derive Gorlin Formula? Formula I: First Hydra...

Q. Derive Gorlin Formula? Formula I: First Hydraulic Formula (Toricelli's law) F = AVCc Where, F = flow rate A = orifice area Cc = coefficient of orifice cont

Production efficiency - ecosystem, Production Efficiency - Ecosystem T...

Production Efficiency - Ecosystem The maximum amount of solar energy harvested by plants is about 5 per cent but the average for green plants, on the whole is only a small fra

Function of noradrenaline in consciousness, Q. Function of Noradrenaline in...

Q. Function of Noradrenaline in consciousness? Increased level of noradrenalin is implicated in wakefulness. Locus coeruleus noradrenergic neurons decrease their rate of firing

Explain the buccal perforations, Buccal Perforations Buccal concavitie...

Buccal Perforations Buccal concavities in the bone can result in some threads of the implant being exposed. Where these are very circumscribed and covered with thick and well-

Proteins, what is he importance of proteins for living beings

what is he importance of proteins for living beings

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd