Assertion: brainstem's structure | /r/CapableOf | extend through vertebral canal
Facets:
value: to the upper lumbar region
type: LOCATION
value: from the base of the brain
type: LOCATION
Source sentences:
text: medulla spinalis, spinal cord a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region