Abducens nucleus

The nucleus nervi abducentis ( Syn motor nucleus nervi abducentis, abducens nucleus ) is a region on both sides of existing core (nucleus ) in the pontine tegmentum from which the abducens nerve ( cranial nerve VI) proceeds. He belongs to the nucleus nervi oculomotorii, the Edinger - Westphal nucleus and the nucleus nervi trochlearis to the eye muscle nuclei via the medial longitudinal fasciculus ( medial longitudinal fasciculus ) are connected together.

The nucleus nervi abducentis located in the brain stem in the region of the fourth ventricle at the bottom of the fourth Hirnventrikels. He arches, together with the inner knee of the facial nerve, the rostral floor of the fourth ventricle slightly before ( the facial colliculus ).

The cholinergic efferents of the nucleus nervi abducentis pull at the base of the brainstem as Abducens for equilateral ( ipsilateral ) lateral rectus muscle. In addition, there are cruising glutamerge neurons to the nucleus nervi abducentis the opposite side, which rise to the contralateral nucleus nervi oculomotorii and end monosynaptically to the nerve cells of the medial rectus muscle. Finally, there are projections to the flocculus of the cerebellum.

Receives afferents of the nucleus nervi abducentis reticularis from the formation and the vestibular nuclei. About the latter vestibulookuläre reflexes are mediated.