hyytelökudosten

Hyytelökudosten, also known as gelatinous tissues or mesoglea, are extracellular matrix found in cnidarians and ctenophores. These tissues are primarily composed of water, collagen, and proteoglycans, giving them a jelly-like consistency. Hyytelökudosten fills the space between the ectoderm and endoderm in these aquatic invertebrates, providing structural support and maintaining their body shape.

In jellyfish and other cnidarians, the mesoglea is often a thick layer that forms the bulk of the animal's body, contributing to buoyancy and enabling locomotion through rhythmic pulsations. It is largely acellular, although some scattered cells, such as amoebocytes, may be present. The composition and thickness of the mesoglea can vary significantly between different cnidarian species, reflecting adaptations to diverse marine environments.

Ctenophores, or comb jellies, also possess a mesoglea, which is similarly gelatinous and supportive. This layer plays a crucial role in their transparent, jelly-like bodies and aids in their movement propelled by rows of cilia. The mesoglea in ctenophores can also contain nerve cells and muscle fibers, contributing to their sensory and contractile capabilities.

Overall, hyytelökudosten is a vital component for the structural integrity, form, and function of cnidarians and ctenophores. Its jelly-like nature is a defining characteristic of these phyla and is essential for their survival in aquatic ecosystems.