Medical Dictionary
cauda equina
noun cauda equi·na \-ek-ˈwē-nə, -ē-ˈkwī-nə\
plural caudae equi·nae \-ek-ˈwē-ˌnī, -ē-ˈkwī-ˌnē\
Medical Definition of CAUDA EQUINA
: the roots of the upper sacral nerves that extend beyond the termination of the spinal cord at the first lumbar vertebra in the form of a bundle of filaments within the vertebral canal resembling a horse's tail
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