"Muscular contraction" Quotes from Famous Books
... expiratory contraction causes the ventricles of the larynx to expand by inflation. This inflation of the ventricles brings their upper margins, formed by the false vocal cords, into contact. Thus the opening from the larynx into the pharynx is closed. This closure is not effected by any muscular contraction, therefore it is not dependent on the strength of the muscular fibers of the false vocal cords. It is an automatic valvular action, directly under voluntary control so far as the contraction of the expiratory ... — The Psychology of Singing - A Rational Method of Voice Culture Based on a Scientific Analysis of All Systems, Ancient and Modern • David C. Taylor
... subject of them, they are known only as transitory changes in the relative positions of parts of the body. Speech, gesture, and every other form of human action are, in the long run, resolvable into muscular contraction, and muscular contraction is but a transitory change in the relative positions of the parts of a muscle. But the scheme which is large enough to embrace the activities of the highest form of life, covers all those of the lower creatures. The lowest plant, or animalcule, feeds, grows, ... — Lectures and Essays • Thomas Henry Huxley |