The mesohyl, formerly known as mesenchyme, 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. For a long time, it has been largely
Found on http://en.wikipedia.org/wiki/Mesohyl
(from the article `sponge`) ...sponge; the interior cells of the larva give rise, in the adult, to the cell layer (pinacoderm) and the different cells (e.g., archaeocytes, ... ...Consequently, the consumption of oxygen is related to the velocity of the current. Excretion occurs through both the oscula and the surface of the ... [2 re...
Found on http://www.britannica.com/eb/a-z/m/76
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