American Society of Nephrology American Society of Nephrology Founded in 1966, the American Society of Nephrology (ASN) is the world’s largest professional society devoted to the study of kidney disease. Composed of over 16,000 physicians and scientists, ASN promotes expert patient care, advances medical research, and educates the renal community. ASN also informs policymakers about issues of importance to kidney doctors and their patients. Each year, the ASN and the ASN Foundation for Kidney Research provide nearly 400 research and travel grants. ASN annual meetings are attended by approximately 13,000 participants, and regional meetings are held throughout the year. The society publishes the "Journal
Sensory organs of gastropods Sensory organs of gastropods The sensory organs of gastropods (snails and slugs) include olfactory organs, eyes, statocysts and mechanoreceptors. Gastropods have no sense of hearing. In terrestrial gastropods the most important sensory organs are the olfactory organs which are located on the tips of the 4 tentacles. In opisthobranch marine gastropods, the chemosensory organs are two protruding structures on top of the head. These are known as rhinophores. An opisthobranch sea slug "Navanax inermis" has chemoreceptors on the sides of its mouth to track mucopolysaccharides in the slime trails of prey, and of potential mates. The freshwater snail "Bithynia tentaculata"