osphradium
Quick Summary
The osphradium is a sense organ found in most aquatic mollusks. It is connected to the visceral ganglia and is located near the gills. Its function is believed to be olfactory, or to test the purity of the water before it reaches the gills. The term "osphradium" comes from Greek words related to smell. While other mollusk anatomy, such as reproductive systems, is complex and varied, the osphradium's primary role is related to sensing the environment through water.123
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molluskThe nervous system and organs of sensation…a chemoreceptive sense organ (the osphradium) monitors the water currents entering the mantle cavity. This organ has regressed in scaphopods, some cephalopods, and some gastropods. Pluricellular mantle papillae, which penetrate the cuticle, the valves, and the shell in some conchifers, are differentiated in placophores as photoreceptors. Aside from the well-developed,…
Read More…a chemoreceptive sense organ (the osphradium) monitors the water currents entering the mantle cavity. This organ has regressed in scaphopods, some cephalopods, and some gastropods. Pluricellular mantle papillae, which penetrate the cuticle, the valves, and the shell in some conchifers, are differentiated in placophores as photoreceptors. Aside from the well-developed,…
Read More- bivalveThe nervous system and organs of sensation
…the posterior adductor muscle an osphradium has been identified in some bivalves that may monitor water flow and quality.
Read More…the posterior adductor muscle an osphradium has been identified in some bivalves that may monitor water flow and quality.
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