conus medullaris http://upload.wikimedia.org/wikipedia/commons/f/f4/Gray662.png FMA:74897 EMAPA:18219 The conical end of the spinal cord, which continues with the filum terminale. [Dorian_AF, Elsevier's_encyclopaedic_dictionary_of_medicine, Part_B:_Anatomy_(1988)_Amsterdam_etc.:_Elsevier][VHOG] UMLS:C0149601 SCTID:315472009 neuronames:1627 VHOG:0000546 The conus medullaris is the terminal end of the spinal cord. It occurs near lumbar vertebral levels 1 (L1) and 2 (L2). After the spinal cord tapers out, the spinal nerves continue as dangling nerve roots called cauda equina. This terminal nerve root tail is referred to as the filum terminale. The upper end of the conus medullaris is usually not well defined. EHDAA:6684 EHDAA2:0000315 termination of the spinal cord NCIT:C12832 medullary cone UBERON:0005437 Wikipedia:Conus_medullaris spinal cord segment