EVERYDAY SCIENCE

Detailed explanation-1: -A spongocoel (/ˈspɒŋɡoʊˌsiːl/), also called paragaster (or paragastric cavity), is the large, central cavity of sponges. Water enters the spongocoel through hundreds of tiny pores (ostia) and exits through the larger opening (osculum).

Detailed explanation-2: -Simple vase-like sponges have a single large top opening, called the osculum through which water leaves the sponge. Most compound sponges have many oscula all over the body of the sponge.

Detailed explanation-3: -The morphology of the simplest sponges takes the shape of a cylinder with a large central cavity, the spongocoel, occupying the inside of the cylinder. Water can enter into the spongocoel from numerous pores in the body wall. Water entering the spongocoel is extruded via a large common opening called the osculum.

Detailed explanation-4: -The osculum (plural “oscula") is an excretory structure in the living sponge, a large opening to the outside through which the current of water exits after passing through the spongocoel. Wastes diffuse into the water and the water is pumped through the osculum carrying away with it the sponge’s wastes.

Detailed explanation-5: -Sponges have a body wall penetrated by tiny openings, or pores, called. (AHS tee uh), through which water enters. The name of. the phylum, Porifera, refers to this system of pores.