What is another word for arachnoid membranes?
Pronunciation: [ɐɹˈaknɔ͡ɪd mˈɛmbɹe͡ɪnz] (IPA) 
Arachnoid membranes are a part of the meninges that surround and protect the brain and spinal cord. Synonyms for arachnoid membranes include the arachnoid layer, the arachnoidea mater, and the leptomeninges. These synonyms are used interchangeably in medical literature and discussions to refer to the delicate, spider-like membranes that make up the middle layer of the meninges. The arachnoid layer is composed of collagen fibers and is located between the pia mater (the innermost layer of the meninges) and the dura mater (the outermost layer). Understanding these synonyms can aid in communication among healthcare professionals and in patient education about brain and spinal cord anatomy.
