2. Ainât âYou ainât gonna believe that âainâtâ ainât at the top of the list, but it ainât.â. You would think ainât would be a the top of the list, but youse will see soon why not. Donât get me wrong, this is a hall of fame non-word. It gets a point for being a contraction.
Peripheral nerves have three layers of connective tissue: Epineurium â is the outermost layer of connective tissue that is continuous with the dura mater. It also includes the connective tissue in between any fascicles (bundles) within the nerve. Perineurium â is the connective tissue sheath that surrounds a fascicle of axons. Endoneurium â is the delicate connective tissue fibers that surround individual axons. Subspecialty
These are bundled together into groups known as fascicles, each surrounded by a protective sheath known as the perineurium. Several fascicles may be in turn bundled together with a blood supply and fatty tissue within yet another sheath, the epineurium.