Assertion: central nervous system | /r/HasProperty | optic nerve
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: The CNS also includes the retina and the optic nerve (cranial nerve II), as well as the olfactory nerves (cranial nerve I) and olfactory epithelium as parts of the CNS, synapsing directly on brain tissue without intermediate ganglia.
text: The Central Nervous System sometimes also includes the retina, optic nerves, olfactory epithelium and olfactory nerves as they connect directly with the tissues of the brain without any connecting nerve fibers.