The plural is oscula.
Ostia and osculum are terms used in the context of sponges, which are simple aquatic animals. The ostium (plural: ostia) refers to the small openings on the surface of a sponge through which water enters, while the osculum (plural: oscula) is the larger opening at the top through which water exits. This water flow is essential for the sponge's feeding, respiration, and waste removal processes.
Osculum Obscenum was created on 1993-10-12.
Top opening of a sponge is called osculum . it is used to expel water out .
Sponges have collar cells, osculum, and spicules.
Sponges have collar cells, osculum, and spicules.
Sponges have collar cells, osculum, and spicules.
Basium; osculum.
The osculum
osculum - a large opening in a sponge through which water flows out of the sponge. Sponges may have more than one oscula.
The osculum 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 exits through the osculum at a velocity of nearly 8.4 cm/second, carrying away with it the sponge's wastes. The size of the osculum is regulated by the myocyte. Its size, in turn, determines the amount of water flowing through the sponge.
An animal with collar cells, an osculum, and spicules is likely a sponge. Sponges are simple aquatic animals that filter feed using collar cells and have a central opening called an osculum through which water exits their bodies. Spicules are tiny, hard structures that provide support and structure to the sponge's body.
It is called the osculum.