RESPIRATIVE 



1256 



REST 



breathing over and over again of a limited volume of 

 gas. R., Jerking. See R., Interrupted. R., Labored, 

 respiration in which, owing to lack of ability on 

 the part of the ordinary muscles of respiration to 

 sufficiently aerate the blood, the auxiliary muscles of 

 respiration are called into play. R., Laryngeal, the 

 widening of the glottis during inspiration and its nar- 

 rowing during expiration. R., Lung. See R. , Pul- 

 monary. R., Metamorphosing (of Seitz), respira- 

 tion in which the first part of the inspiratory sound is 

 tubular and the last part cavernous ; a cavernous ele- 

 ment is also heard during expiration. It is a certain 

 sign of a cavity (Vierordt). R., Muscle, respiration 

 by a muscle when in action. R., Nasal, nose breath- 

 ing. R., Nervous. See R., Cerebral. R., Normal, 

 respiration as it occurs in a normal individual in a 

 state of rest or moderate action. R., Oral. See 

 Mouth-breathing. R., Ordinary. See R., Normal. 

 R., Organs of, any parts of the body by means of 

 which certain constituents of the blood are exchanged 

 for those of the surrounding air or water. R., Pha- 

 ryngeal {of Garland), rhythmic expansions and con- 

 tractions of the pharnyx in connection with other move- 

 ments of respiration. The expansion is pre-inspiratory 

 and the contraction inspiratory. R., Placental. See 

 R. , Fetal. R., Puerile. See R. , Exaggerated. R., 

 Pulmonary, respiration in which the interchange of 

 gas between the blood and air occurs in the lungs. 

 R., Rough, a variety of broncho-vesicular respiration. 

 R., Rude. See R., Rough. R., Senile, the feeble 

 respiration of old age. R., Sighing, deep respira- 

 tion accompanied with sighing. It is seen in pulmon- 

 ary congestion and dyspepsia. R., Stertorous, the 

 sound produced by breathing through the nose and 

 mouth at the same time, causing vibration of the velum 

 pendulum palati between the two currents of air. R., 

 Subsibilant {of Laennec), a dull, whistling sound 

 heard over the bronchi, and due to an obstruction by 

 mucus. R., Superficial. See R. , Blood. R., Sup- 

 plementary. See R., Exaggerated. R., Thoracic. 

 See R., Costal. R., Tissue. See R., Internal. R., 

 To-and-fro. See R., Intrinsic. R., Tracheal, the 

 respiratory murmur heard in a normal individual by 

 placing a stethoscope over the supra-sternal fossa. 

 R., Tranquil. See R., Normal. R., Tubular. See 

 R. , Bronchial. R., Uremic. See R., Cheyne- 

 Stokes. R., Vaginal, the movements of the vagina 

 caused by the movements of the diaphragm in respi- 

 ration. R., Ventral. See R., Abdominal. R., 

 Vesicular, a soft, gradual, low-pitched inspiration 

 immediately followed by a shorter and less distinct ex- 

 piration-sound heard over the normal lung during respi- 

 ration. R., Vesiculo-bronchial. See R., Broncho- 

 vesicular. R., Wavy. See R., Interrupted. 



Respirative ( res-pi' -rat-iv ) [ respirare, to respire]. 

 Performing respiration. 



Respirator {res-pe-ra' -tor) \_respirare, to respire]. An 

 instrument through which one breathes to modify the 

 coldness of the air or to exclude its impurities, or for 

 the inhalation of volatile medicaments. R.-veil, a 

 muffler for women, devised by Lennox Browne. It 

 consists of a piece of plain veiling with a double 

 thickness of silk gossamer on the lower four inches. 

 The part that covers the mouth and nostrils is stiff- 

 ened with a layer of thin wire gauze, so that the veil 

 may stand a little away from the face and be more 

 comfortable. 



Respiratorium (res-pe-ra-to'-re-uni) [nwpirair, to re- 

 spire, to breathe out : //. , Respimtoria']. In biology, 

 one of the delicate folds of the integument of the 

 aquatic larvae of certain insects, richly supplied with 

 minute tracheae. 



Respiratory {res' -pe -ra- to- re) \respiratorius\ Per 

 taining to respiration. Also, to the murmur heard upor 

 auscultation over the lungs of a healthy person during 

 ordinary breathing. R. Blood, Huxley's name fo 

 the fluid present in the pseudo-hemal system of vessel 

 of certain invertebrates {Annelida) . It contains a dis- 

 solved red substance allied to hemoglobin. R. Ca- 

 pacity, the capacity of the blood for taking up oxygei 

 in the respiratory organs and depositing it in the i i 

 and of taking up carbon dioxid from the tissues am 

 giving it off in the respiratory organs. R. Cavity, tin 

 same as the thoracic cavity ; also used as a general tern 

 to describe the air-passages. R. Chamber, a res 

 piratory cavity. R. Filaments, thread-like organs ar 

 ranged in tufts near the head of the larva of the 

 R. Glottis, that part of the glottis between tin 

 enoid cartilages. R. Leaflets, the laminated i 

 of respiration of the pulmonary arachnidans. R 

 Murmur, the sound produced by the air entering am 

 escaping from the lungs during the respiratory period 

 R. Nerve, one of two nerves involved in respira 

 tion. The external is the posterior thoracic nerve 

 the internal, the phrenic nerve. R. Nerve (of th 

 Face), the facial nerve. R. Nerves (of Bell), th 

 Phrenic, Posterior Thoracic, and Facial Ner 

 Orifice, a breathing pore. R. Percussion, Da ( 

 term for the method of physical examination by notin 

 the sound elicited by percussion of the chest while th 

 breath is held after a full inspiration, and also after 

 prolonged expiration. R. Periods, the timeelapsin 

 ' between the beginning of one inspiration and that o 

 the next. R. Pigments, a series of pigments di: 

 covered by McMunn, Moseley, Krukenberg, an 

 others in the fluids and tissues of many plants an 

 animals. They are capable of existing in a stat 

 of oxidization and reduction, and play an importatj 

 role in the function of respiration. See Pigment] 

 Conspectus of. R. Plate. See Respiratorium. F ; 

 Portion of the Nose, the lower portion of the nas;j 

 cavity. R. Pulse, the modifications in the pulse pro 

 duced by respiration. R. Quotient, the ratio betwet ■ 

 the amount of oxygen given off by the lungs and thsj 

 taken up by them in the same period of time. Fj 

 Sac, a sac-like respiratory organ of various animal ! 

 R. Sound. See R. Murmur. R. Surface, tf 

 entire surface of pulmonary tissue coming in cot 

 tact with the respired air. R. Tract, a term d, 

 scriptive of the sum of the air-passages. R. Tube 

 a term applied to all tubular organs of respirati<> j 

 R. Vesicular Murmur, the normal respiratory Douj 

 mur. See Respiration, Normal. 



Respire (re-splr') [re, back ; spirare, to breathe], 

 breathe. 



Respirometer (res -pi- rom' ■ et - er) [respira re, to tal 

 breath; /uerpov, measure]. An instrument for i 

 certaining the condition of the respiration. Al 

 the apparatus used to supply air to a diver and 

 water by supplying compressed oxygen, which 

 made to combine in proper proportion with mtij 

 gen chemically filtered from the air expired from I 

 lungs. 



Responsibility (re-spon-sib-il' -it-e) [ respon. 



swer]. In medical jurisprudence, the accountabil 

 of a person for an act committed. It usually tin 

 upon the question as to whether or not I 

 was of sound mind and capable of controlling 

 actions and thoughts. 



Resserrement (res-air-»ton(gY) [ Fr.] 

 constipation. 



Rest [ME., resten, to rest]. Cessation of all motion, li 

 or action; to sleep, to lie dormant. R. of R ov 'j 

 an epithelial formation arising either early, during ■ 



