INSPIRATION

n. In-spi2-ra's hu3n. Gr., ci<nrvori. Lat., inspimtio (from inspirare, to blow into). Fr., i. Ger., Einathtiiung, I. It., ins pir azione. Sp., inspiracion. 1. The act of drawing in the breath. [J.] 2. The act or property of plant-organs, especially leaves, of absorbing gases from the atmosphere. [B, 1 (a, 24).] Crowing i. The peculiar, noisy i. made in laryngismus stridulus or spasmodic croup. [D, 63; L. Elsberg, "N. Y. Med. Jour.," Dec. 20, 1884, p. 685 (D).] Deferred i. I. which is not audible until shortly after the beginning of the inspiratory act. During this interval the air-cells have become distended, and at its close the inspiratory murmur is heard as a short wheeze; observed in emphysema, bronchitis, etc. [D, 1.] Difficult i., Forced i., Forcible i. Fr., i. forcee. Qer.,forcirte I. Syn.: labored i. I. (2d def.) in which the ordinary muscles of i. are a isted by the so-called inspiratory auxiliaries (i. e., the muscles attached to the chest which by their contraction can increase the thoracic cavity directly or indirectly by furnishing fixed support whereby other muscles may act more advantageously). If the movements become exce ively labored, there is brought into co-ordinate action every muscle in the body which can either directly or indirectly increase the cavity of the thorax. [J, 18, 40, 53, 198.] See MUSCLES of i. Full i. Fr., i. profonde. Ger., tiefe Athmung. Syn.: full breath. I. in which the lungs are filled as completely as po ible (voluntarily, as in determining the amount of complemental air, or involuntarily, as in cardiac dyspnoea). [J.] I. of blood. The increased How of venous blood into the heart, due to and during the act of i. [K.] I. profonde (Fr.). See Full i. I's druck (Ger.). See PRESSURE of i. I's welle (Ger.). The wave-like movement of i. [J.] Jerking i. Ger., saccadirte I. An inspiration the murmur of which, instead of being regular and continuous, is interrupted and wavy. It is a ociated with incipient pleurisy, pleurodynia, and asthma, [a, 40.] Labored i. See Forced i. Non-expansive i. I. in which the expansile movement of the chest is deficient or altogether absent, owing to emphysema, pleuritic adhesions, or obstruction to the entrance of air into the lung, [a, 40.] Saccadirte I. (Ger.). See Jerking i. Unfinished i. I. prematurely and abruptly stopped; one of the disorders of the respiratory rhythm. [D.] [s. 467]