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
1 Perimysium. 2  Within each skeletal muscle, the muscle fibers are separated into groups. 3  Each group, which resembles a bundle of sticks tied together, is called a fascicle (bundle). 4  Surrounding each fascicle is a layer of fibrous connective tissue called perimysium (around the muscle [fascicle]).