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 an integral part of neuroendocrine function. The highly permeable capillaries allow the CVOs to act as an alternative route for peptides and hormones in the neural tissue to sample from and secrete to circulating blood. CVOs also have roles in body fluid regulation, cardiovascular functions, immune responses, thirst, feeding behavior and reproductive behavior. CVOs can be classified as either sensory or secretory organs serving homeostatic functions and body water balance. The sensory organs include the area postrema (AP), the subfornical organ (SFO) and the vascular organ of lamina terminalis, all having the ability to sense signals in blood, then pass