"Efferent" Quotes from Famous Books
... arc a sense-organ is stimulated and the energy of stimulation is transformed into nervous energy, which then passes along an afferent nerve to the central nervous system, passes through this and out by an efferent or motor nerve to a muscle, where the energy is again transformed and the muscle contracts. Stimulation at one point of the animal organism produces contraction at another. The principles of irritability and of motility are involved, but all further study ... — Introduction to the Science of Sociology • Robert E. Park |