The principle that is the spinal cord dorsal roost are sensory and the ventral roots are motor is known as: (A) Laplace's law, (B) Bell-Magendie Law, (C) Frank-Starling Law, (D) Weber-Fechner Law
Answer is B. Ans. (b) Bell-Magendie Law(Ref: Ganong, 25th ed/p.229)Bell-Magendie law:#This law states that "Spinal dorsal roots contain sensory fibers and ventral roots contain motor fibers"