The gel-like consistency of mesohyl acts like an endoskeleton and maintains the tubular morphology of sponges. Mesohyl is an extracellular matrix consisting of a collagen-like gel with suspended cells that perform various functions. Pinacocytes, which are epithelial-like cells, form the outermost layer of sponges and enclose a jelly-like substance called mesohyl. While sponges (excluding the hexactinellids) do not exhibit tissue-layer organization, they do have different cell types that perform distinct functions. However, sponges exhibit a range of diversity in body forms, including variations in the size of the spongocoel, the number of osculi, and where the cells that filter food from the water are located. ![]() Water entering the spongocoel is extruded via a large common opening called the osculum. Water can enter into the spongocoel from numerous pores in the body wall. ![]() 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.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |