Nucleus of Darkschewitsch


The nucleus of Darkschewitsch is an accessory oculomotor nucleus situated in the ventrolateral portion of the periaqueductal gray of the mesencephalon near its junction with the diencephalon. It is involved in mediating vertical eye movements. It projects to the trochlear nucleus, receives afferents from the visual cortex, and forms a reciprocal connection with the cerebellum by way of the inferior olive.

Anatomy

Connections

It receives afferents from the visual association areas, vestibular nuclei, and from the spinomesencephalic tract.
It gives rise to the medial tegmental tract to project efferents to the medial accessory olivary nucleusinferior cerebellar peduncleglobose nucleus of cerebellum → superior cerebellar peduncle → medial accessory olivary nucleus →.
It projects to the trochlear nucleus.

Relations

It is situated near the oculomotor nucleus. It is situated just dorsomedial to the interstitial nucleus of Cajal, the medial longitudinal fasciculus, and red nucleus.