Anatomy Of A Sponge

Compressed polygonal cells called pinacocytes make up the pinacoderm the external sac layer. Spongin is a protein that helps provide body support.

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Amoeba like cells found throughout the sponge.

Anatomy of a sponge. Sponges exhibit radial symmetry. Body of a sponge is vase like tubular tube like cylindrical branched cushion shaped etc. Anatomy a sea sponges body primarily consists of spicules and spongin.

Morphology and canal system. The skeletal elements of sponges are variable and important in taxonomy. Anatomy the body of a sponge is a collection of a few different types of cells loosely arranged in a gelatinous matrix called a mesohyl mesoglea or mesenchyme.

Instead they consist of three cell sized layers. Sponges have neither tissues nor organs. The body of a sponge has two outer layers separated by an acellular having no cells gel layer called the mesohyl also called the mesenchyme.

Sponges are either radially symmetrical or have no symmetry asymmetrical. This mesohyl is the connective tissue of a sponge body and it is supported by the skeletal elements. Sponges lack a true body cavity.

Simple worksheet for labeling the parts of the sponge such as the osculum and choanocyte. Store digest and transport food excrete wastes secrete skeleton and also may give rise to buds in asexual reproduction pinacoderm the outer epidermal layer of cells on a sponge. Spicules are needle shaped fiberlike structures that act as the sponges skeleton.

Basic anatomy sponges contain no organs or even tissue. Sponges are sessile not mobile organisms including both solitary and colony forming types. In the gel layer are either spicules supportive needles made of calcium carbonate or spongin fibers a flexible skeletal material made from protein.

The cells in the outer layers can move inward and change function. Sponges have a true coelom. Sponges lack true tissues.

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