In anatomy, the meninges (/ məˈnɪndʒiːz /; [1][2] sg. meninx / ˈmiːnɪŋks, ˈmɛnɪŋks /; [3] from Ancient Greek μῆνιγξ (mêninx) 'membrane') [4] are the three membranes that envelop the brain and spinal cord. In mammals, the meninges are the dura mater, the arachnoid mater, and the pia mater. Cerebrospinal fluid is located in the subarachnoid space between the arachnoid mater and the pia mater. The primary function of the meninges is to protect the central nervous system. [5] The meninges are the protective membranous coverings that surround the brain and spinal cord. They consist of three distinct layers: the dura mater, arachnoid mater, and pia mater. These layers serve two key functions: Provide a supportive framework for the cerebral vasculature. Work alongside cerebrospinal fluid (CSF) to cushion the central nervous system (CNS) and prevent mechanical injury. In this article, we will review the anatomy of the three meningeal layers and their clinical relevance. Learn about the three layers of meninges that protect and support your brain and spinal cord, and the conditions that can affect them. Find out the signs of meningitis, subdural hematomas, and bleeding in the meninges , and how to keep your meninges healthy. An overview of the anatomy of the meninges including the dura mater, arachnoid mater and pia mater. The article also discusses the clinical relevance of understanding the anatomy of the meninges .
