Assertion: cord's artery | /r/AtLocation | cranial cavity
Facets:
value: as the union of two vessels
type: MANNER
Source sentences:
text: , which originates within the cranial cavity as the union of two vessels that arise from the vertebral arteries-the resulting single anterior spinal artery passes inferiorly, approximately parallel to the anterior median fissure, along the surface of the spinal cord; and Two posterior spinal arteries, which also originate in the cranial cavity, usually arising directly from a terminal branch of each vertebral artery (the posterior inferior cerebellar
text: A single anterior spinal artery , which originates within the cranial cavity as the union of two vessels that arise from the vertebral arteries-the resulting single anterior spinal artery passes inferiorly, approximately parallel to the anterior median fissure, along the surface of the spinal cord; and