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(FRAME-INFO (STRING "Spinal Cord Meninges. \(Image modified from H.D. Patton et al., Introduction to Basic Neurology, with permission of W.B. Saunders Co., 1976\). The meninges in this schematic are color-coded: dura \(green\), arachnoid \(violet\), and pia \(yellow\). The dura and arachnoid have been partially reflected to show underlying structures. The pia is closely applied to the cord itself and cannot be easily removed. Extensions of the pia form the denticulate ligament, which anchors the cord to the dural sheath laterally. At the caudal end of the cord \(the conus medullaris\), the filum terminale \(another pial structure-not shown\) anchors the cord to the caudal end of the dural sheath. The 3 meningeal layers extend out to the dorsal root ganglia, where they fuse imperceptibly with the connective tissue layers associated with the spinal nerves \(epineurium, perineurium and endoneurium\). The dorsal root \(spinal\) ganglia are located in the intervertebral foramen \(not shown\)."))