The conus medullaris is the terminal end of the analgesic cord. It occurs abreast lumbar vertebral levels 1 (L1) and 2 (L2). After the analgesic bond tapers out, the analgesic fretfulness abide as dangling assumption roots alleged cauda equina. This terminal assumption basis appendage is referred to as the filum terminale. The high end of the conus medullaris is usually not able-bodied defined. The claret accumulation consists of three analgesic arterial argosy -- the antecedent average longitudinal arterial block and two posterolateral trunks. Other beneath arresting sources of claret accumulation accommodate radicular arterial branches from the aorta, crabbed sacral arteries, and the fifth lumbar, iliolumbar, and average sacral arteries. The closing accord added to the vascular accumulation of the cauda equina.
reff : http://911medic.blogspot.com/2010/03/what-is-conus-medullaris-definitions.html
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