Polish Society of Nephrology to represent nephrologists’ community i.e. to develop and promote up-to-date clinical practice in the fields of nephrology, dialysis therapy and kidney transplantation as well as to take part in health care organization in the area of Society’s competence. PSN promotes kidney health by organizing educational meetings and cooperating with patient organizations. The aim of PSN is also to promote continuous professional development, research activities and international cooperation among its members. Young Nephrologists’ Club (YNC) of the PSN was established in 2014. The aim of the YNC is to cooperate with the Young Nephrologists’ Platform of the ERA-EDTA and to promote
Circumventricular organs that information neurally to other brain regions. Through their neural circuitry, they provide direct information to the autonomic nervous system from the systemic circulation. The secretory organs include the subcommissural organ (SCO), the pituitary gland, the median eminence, and the pineal gland. These organs are responsible for secreting hormones and glycoproteins into the peripheral blood using feedback from both the brain environment and external stimuli. All of the circumventricular organs, except the subcommissural organ, contain extensive vasculature and permeable capillaries which define a sensory and secretory system within the brain. Furthermore, all CVOs contain neural tissue, enabling a neuroendocrine role.