Les méninges vues par l’anatomiste

摘要: The meninges correspond to an anatomical concept. For the morphologist, microscopic organization, hypothetical presence of a subdural space, nature interface between deep meningeal layer and nervous parenchyma in perivascular spaces are central issues. clinician, dynamic aspects cerebrospinal fluid flow, secretion, resorption essential factors with practical consequences terms disease patient management. Comparative anatomy, embryology, organogenesis provide interesting perspective for descriptive functional anatomy meninges. Usually considered as protective membranes, play prominent role development maintenance system. constant evolution, from their formation senescence. present three layers children adults: dura mater, arachnoid pia mater. is secreted by choroid plexuses, flows through ventricles subarachnoid absorbed granulations. Other sites secretion suggested comparative human embryology organogenesis.