Assertion: accessory nerve | /r/MadeOf | fibre
Facets:
value: from the medulla oblongata
type: LOCATION
value: by fibres from cervical levels
type: OTHER
Source sentences:
text: The accessory nerve is formed by fibres from the medulla oblongata (known as the cranial root) and by fibres from cervical levels C 1 –C 4 (known as the spinal root).