part of part of surrounds surrounds peripheral nervous system epineurium NLXANAT:090203 Wikipedia:Epineurium BTO:0003154 A loose connective tissue sheath surrounding each peripheral nerve. Composed mainly of colagen and fibroblasts, it forms a substantial covering over nerve trunks, then thins to an incomplete layer around smaller branches near their terminations. The epineurium is continuous centrally with the dura. Peripherally, it usually ends near the termination of a nerve fiber, but it may continue as the capsule of Meissner corpuscles and a few other encapsulated endings. Nolte, J. The Human Brain 3rd edition. FMA:12234 UBERON:0000124 NCIT:C32528 SCTID:64482002 nerve dense irregular connective tissue