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| |Brain: Abducens nucleus| |The cranial nerve nuclei
schematically represented; dorsal view. Motor nuclei in red;
sensory in blue. The olfactory and optic centers are not
represented. (Abducens nucleus is VI)| |Gray's||subject #187
787| The abducens nucleus is the originating nucleus from which
the abducens nerve emerges - a cranial nerve nucleus. This
nucleus is located beneath the fourth ventricle in the caudal
portion of the pons, medial to the sulcus limitans. The abducens
nucleus along with the internal genu of the facial nerve make up
the facial colliculus, a hump at the caudal end of the medial
eminence on the dorsal aspect of the pons. Damage to the
abducens nucleus causes monocular medial ophthalmoparesis:
specifically, loss of the ability to move the ipsilateral eye
outward (abduction). This is also seen in damage of the abducens
nerve. In contrast, damage to the area of the n