anterior median fissure of medulla oblongata

(redirected from fissura mediana anterior medullae oblongatae)

an·te·ri·or me·di·an fis·sure of me·dul·la ob·lon·ga·ta

the longitudinal groove in the midline of the anterior aspect of the medulla oblongata; it is the medullary equivalent of the anterior median fissure of the spinal cord and ends at the foramen cecum posterius; its caudal part is obliterated by the decussation of the pyramids.