cauda equina

noun

cauda equi·​na -ek-ˈwē-nə How to pronounce cauda equina (audio) -ē-ˈkwī-nə How to pronounce cauda equina (audio)
plural caudae equinae -ek-ˈwē-ˌnī, -ē-ˈkwī-ˌnē How to pronounce cauda equina (audio)
: the roots of the spinal 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 spinal canal resembling a horse's tail
From its tip at the base of the spine, about 20 stringy nerves—called the cauda equina, or horse's tail—travel downward within a fluid-filled sac.Bruce H. Dobkin

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Cite this Entry

“Cauda equina.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/cauda%20equina. Accessed 7 Feb. 2023.

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