Assertion: accessory nerve's fiber | /r/HasProperty | ventral
Facets:
value: to those to the sternocleidomastoid
type: OTHER
Source sentences:
text: Weakness of the trapezius on one side with sparing of the sternocleidomastoid muscles indicates a ventral brainstem lesion (the supranuclear fibers to the trapezius are ventral to those to the sternocleidomastoid), a lower cervical cord lesion (due to the somatotopic arrangement of the lower motor neurons and nuclear cell column of the trapezius being below that of the sternocleidomastoid), or a lower spinal accessory root lesion (sparing upper roots to the sternocleidomastoid).