Thecal sac

The thecal sac or dural sac is the membranous sheath of dura mater that surrounds the spinal cord and the cauda equina. The thecal sac contains the cerebrospinal fluid in which the spinal cord 'floats'.^[1]

References

↑ "tethered cord". http://www.neuroandspine.com/conditions/pediatric-neurosurgery/tethered-cord. External link in |website= (help); Missing or empty |url= (help)

Posterior grey column	Marginal nucleus Substantia gelatinosa of Rolando Nucleus proprius Spinal lamina V Spinal lamina VI
Lateral grey column	Intermediolateral nucleus Posterior thoracic nucleus
Anterior grey column	Interneuron Alpha motor neuron Onuf's nucleus Gamma motor neuron
Other	Rexed laminae Central gelatinous substance Gray commissure Central canal Terminal ventricle

Sensory

Posterior	Posterior column-medial lemniscus pathway: Gracile Cuneate
Lateral:	Spinocerebellar dorsal ventral Spinothalamic lateral anterior Posterolateral Spinotectal
Spinoreticular tract Spino-olivary tract

Motor

Lateral	Corticospinal Lateral Extrapyramidal Rubrospinal Olivospinal Raphespinal
Anterior	Corticospinal Anterior Extrapyramidal Vestibulospinal Reticulospinal Tectospinal

Both

External features

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