Embryonic anastomosis between hypoglossal nerves

Rodríguez Vázquez, José Francisco; Mérida Velasco, José Ramón; Verdugo López, Samuel; Sanz Casado, José Vicente; Jiménez Collado, Juan

Embryonic anastomosis between hypoglossal nerves

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Official URL

https://www.link.springer.com/article/10.1007/s12565-009-0037-y

Publication date

2009

Authors

Rodríguez Vázquez, José Francisco

Mérida Velasco, José Ramón

Verdugo López, Samuel

Sanz Casado, José Vicente

Jiménez Collado, Juan

Publisher

Springer

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URI

https://hdl.handle.net/20.500.14352/97545

Citation

Rodríguez-Vázquez JF, Mérida-Velasco JR, Verdugo-López S, Sanz-Casado JV, Jiménez-Collado J. Embryonic anastomosis between hypoglossal nerves. Anatomical Science International. 2009 Dec;84(4):293-7.

Abstract

This article presents two cases of anastomosis of hypoglossal nerves in the suprahyoid region in human embryos of CR length 10.75 and 17.5 mm. This variation was studied in two human specimens at this stage of development and compared with the normal arrangement of the hypoglossal nerves in embryos at the same stage. The anastomotic branches were of similar caliber to the main trunks. In both cases the anastomosis was located dorsal to the origin of the geniohyoid muscles and caudal to the genioglossus muscles, lying transversally over the cranial face of the body of the hyoid bone anlage. The anastomosis formed a suprahyoid nerve chiasm on the midline in the embryo of 10.75 mm CR length.