International Society of Nephrology International Society of Nephrology The International Society of Nephrology (ISN) is an international body representing specialists in nephrology (kidney diseases). Its headquarters are located in Brussels, Belgium and New Jersey, United States. Since its foundation in 1960, the ISN has pursued the worldwide advancement of education, science and patient care in nephrology, the medical subspecialty dealing with the Kidneys). The Society represents a wide international network and provides an efficient platform for timely scientific exchange, debate and dissemination between healthcare professionals around the world. It is also dedicated to addressing the disparity between the developing and developed worlds in the
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"