The Spinal Canaland its Contents

(superior view)

Spina bifida occulta

also: vertebral, ascending cervical, posterior intercostal, subcostal, iliolumbar, lateral

and medial sacral arteries

medial branchesinnervate the

zygapophysialjoints

anuli fibrosi, ALL, periosteum,

ligamenta flava,PLL, spinal dura,

and blood vesselswithin the vertebral

canal

cervicalenlargement(C4-T1)

lumbosacralenlargement(L1-S3)

posterior

anterior

One spinal cord segment:

afferentefferent

dura-arachnoidinterface

(anterior view)

dorsal n. root

ventral n. root

denticulateligaments

conus medullaris

(or to obtain sample of CSF)

anterior view posterior view