n. in anatomy and neurophysiology, refers to the law which states that, as to structure and function, the anterior roots of the spinal cord are mainly motor while the posterior roots are mainly sensory. First presented by British anatomist Sir Charles Bell (17714-1842) and elaborated on by French physiologist Francois Magendie (1783-1855).
BELL-MAGENDIE LAW: “Findings from the Bell-Megendie Law show that nerve impulses are conducted in one direction only, either anteriorly or posteriorly.”