Cauda equina: A bundle of spinal nerve roots that arise from the bottom end of the spinal cord. The cauda equina comprises the roots of all the spinal nerve roots below the level of the first lumbar (L1) vertebra, namely the sacral and coccygeal nerves. So named because it resembles the tail (Latin, cauda) of a horse (Latin, equus). See also Cauda equina syndrome.
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The roots of the sacral and coccygeal nerves, collectively; so called because of their resemblance to a horse's tail.
Medical Author: Jason C. Eck, DO, MS Medical Editors: Duc Hoang Duong, MD; Ryszard M Pluta, MD, PhD; Melissa Conrad Stoppler, MD. Cauda Equina Syndrome Overview
The prognosis for cauda equina syndrome (CES) improves if a definitive cause is identified and management is instituted early.
Although low back pain is common and usually goes away without surgery, cauda equine syndrome, a rare disorder affecting the bundle of nerve roots (cauda equina) at the ...