The hypoglossal nuclear complex in reindeer.

The hypoglossal complex has an ovoid shape and is largest at the level of obex. Caudally to the obex is 2/3 of the complex. The complex is divided into 4 groups. Sublingual nucleus of Roller presents a narrow strip of cells located ventrally to the middle part of hypoglossal nucleus. Laterally to obex is the paramedian nucleus of Jacobson in the form of short, narrow band. Posteriorly to Jacobson's nucleus is the intercalated nucleus of Staderini. Constinuation of the hypoglossal nucleus is the nucleus prepositus of Marburg.