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The mesoglea is mostly acellular, [2] but in both cnidaria [3] and ctenophora [4] the mesoglea contains muscle bundles and nerve fibres. Other nerve and muscle cells lie just under the epithelial layers. [2] The mesoglea also contains wandering amoebocytes that play a role in phagocytosing debris and bacteria. These cells also fight infections ...
The mesohyl, formerly known as mesenchyme or as mesoglea, is the gelatinous matrix within a sponge. It fills the space between the external pinacoderm and the internal choanoderm . The mesohyl resembles a type of connective tissue and contains several amoeboid cells such as amebocytes , as well as fibrils and skeletal elements.
In some invertebrates, such as Porifera, Cnidaria, Ctenophora, and some triploblasts (namely the acoelomates), the term "mesenchyme" refers to a more-or-less solid but loosely organized tissue that consists of a gel matrix (the mesoglea) with various cellular and fibrous inclusions, located between the epidermis and the gastrodermis (non ...
A new species of dinosaur has been identified more than a decade after a large number of ancient skeletons were found in Spain -- and researchers expect more species to be discovered. The ...
The mouth leads into the coelenteron, similarly to the hydranth, which then branches into 4 radial canals. The canals take the food around the entire body of the gonangia for full digestion. The endoderm of the gonangia is the inner lining to the canal system. The mesoglea can be found in the manubrium in between the endo- and ectoderm.
Museum of Ambrona: in situ exhibition of remains of ancient elephant, Straight-tusked elephant. Torralba and Ambrona (Province of Soria, Castile and León, Spain) are two paleontological and archaeological sites that correspond to various fossiliferous levels with Acheulean lithic industry (Lower Paleolithic) associated, at least about 350,000 years old (Ionian, Middle Pleistocene).
Archaeologists in Spain have unearthed a 2,100-year-old bronze hand that both astounded and puzzled experts. At the foot of a castle on Mount Irulegi , the invading ancient Roman army attacked and ...
The gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Coelenterates or cnidarians (including jellyfish and corals) and Platyhelminthes (flatworms).