The body has two sections, each with its own coelom.

Loss of coelom is correlated with reduction in body size.

This then leads to the formation of a coelom.

This fluid filled cavity is known as the coelom.

Initially, between 1879-1883, they worked together and performed embryological studies, especially on the theory of the coelom (1881).

Coelom is sometimes (incorrectly) used to refer to any developed digestive tract.

In the past, zoologists grouped animals based on characteristics related to the coelom.

However, the main circulatory fluid fills the general body cavity, or coelom.

The coelom can be used for diffusion of gases and metabolites etc.

Like other annelids, the coelom stores and provides nutrients for gametes.

Both are derived from the coelom and form an open and reduced circulatory system.

The coelom is formed within the mesoderm of the embryo.

These pockets gradually expand to form the coelom.

There is no coelom at any stage.

Functionally, a coelom can absorb shock or provide a hydrostatic skeleton.

The formation of a mesoderm led to the development of a coelom.

It is always oriented towards the coelom.

These groups have a reduced coelom, called a pseudocoelom.

It sometimes partially protrudes the lining of its coelom through its mouth.

Some of the body cavities degenerate but others become the water vascular system and the visceral coelom.

The origin of the coelom is uncertain.

It briefly has a connection with the extraembryonic coelom.

Name derrived from coelom, in reference to the cavity created inside the sphere.

Most worms are either male or female and the gametes mature in the coelom before being released into the water column.

Hence the coelom of the arthropod is reduced to small areas around the reproductive and excretory systems.

The space between the amnion and the serosa constitutes the extra-embryonic celom, and for a time communicates with the embryonic celom.