All the following nuclei are seen on the floor of fouh ventricle except
Facial nuclei are not seen on the floor of fouh ventricle. Cranial nerve nuclei underneath the floor of 4the ventricle are: Abducent nucleus Vestibular nuclei Hypoglossal nucleus Dorsal nucleus of Vagus Nuclei of 9 and 11 cranial nerves (Ref: Vishram Singh textbook of clinical neuroanatomy, second edition pg 122, also refer table 10.3)
Facial nucleus
Dorsal vagal nuclei
Hypoglossal nucleus
Abducens nucleus
Brain 