Template:Infobox Anatomy

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

## Contents

* 1 Overview
* 2 Blood supply
* 3 Pathology
* 4 References
* 5 External links

## Overview[edit | edit source]

The conus medullaris is the terminal end of the spinal cord. It occurs near lumbar nerves 1 (L1) and 2 (L2). After the spinal cord terminates, the spinal nerves continue as dangling nerves called the cauda equina. The upper end of the conus medullaris is usually not well defined.

## Blood supply[edit | edit source]

The blood supply consists of three spinal arterial vessels—the anterior median longitudinal arterial trunk and two posterolateral trunks. Other less prominent sources of blood supply include radicular arterial branches from the aorta, lateral sacral arteries, and the fifth lumbar, iliolumbar, and middle sacral arteries. The latter contribute more to the vascular supply of the cauda equina.

## Pathology[edit | edit source]

The term "conus medullaris syndrome" is sometimes used to describe a condition similar to cauda equina syndrome.[1][2]

## References[edit | edit source]

1. ↑ Schwarz S, Zoubaa S, Knauth M, Sommer C, Storch-Hagenlocher B (2002). "Intravascular lymphomatosis presenting with a conus medullaris syndrome mimicking disseminated encephalomyelitis". Neuro-oncology. 4 (3): 187–91. PMID 12084349.CS1 maint: Multiple names: authors list (link)
2. ↑ "Medcyclopaedia - Conus medullaris syndrome". Retrieved 2007-11-22.

## External links[edit | edit source]

* Template:UMichAtlas \- "Lower Third of Spinal Cord, MRI"

Template:Neuroscience-stub

Template:Spinal cord