The<unk>  nucleus of the<unk>  nerve (or posterior motor nucleus of<unk>  is a cranial nerve nucleus for the<unk>  nerve that arises from the floor of the fourth ventricle.
Dorsal nucleus of vagus nerve
Trigeminal nerve nuclei
Trigeminal motor nucleus
Cranial nerve nucleus
Vestibulospinal tract
Tectospinal tract
Spinothalamic tract
Lateral spinothalamic tract