Breath

(breth). The air exhaled from the lungs. It has lost a part of its oxygen and gained a certain but varying amount of ammonia, aqueous vapor and carbon dioxid from the oxidation of the waste matter of the blood. Also applied to the air inspired. B. Sounds, the respiratory sounds heard upon auscultation. In the healthy chest three varieties of respiratory sounds may be recognized: I. Those produced in the glottis, and audible over the lower end of the trachea tracheal or bronchial breathing. 2. Those produced in the alveoli and audible over the lungs vesicular breathing. 3. Those audible about the roots of the lungs, combining the character of the two preceding broncho-vesicular breathing. A Table of Breath- Sounds is given on the next page. Variety of Period. Vesicular. I. tion. Inspira- Breathing. IN HEALTH AND (Altered and enlarged from J. K. Fowler). Pitch. Quality. Interval. None. 2. tion. Expira- Lower. Vesicular. Blowing. i. Inspiration. 2. tion. Expira- High. Tracheal. Distinct. Higher. Tracheal..... Low. BREGMA TO- ANTERIOR.... DISEASE. Duration. Intensity..... Variable. Heard. itio Cond Heard Over the lungs, In health. in health. Shorter than in- Faint or abs pir at i on or sent, absent..... I Variable. Equal to or Greater. longer than inspiration. In health, over In health: the seventh pultnonarv cervical spine tuberculosis, In disease,' lobar pneuover areas of monia. large consolidation: epleuritic ffu si o n s, aneurysm, thoracic B rone hoi. Ins pir a vesicular. tion. 2. tion. Expira-.... Higher than More or le Slight. tracheal. in vesicular breathing..... or le Higher than More in vesicular tracheal breathing. About equal to Greater. inspiration. tumors. j mediastinal In health, ant., In health; over sternal pneumonia, portion of in-' pu lmonary fra-clavic.i tuberculoregion; post., upper part of region. In disease, over slight consolidation. Amphoric. Cavernous. i. Inspiration. 2. Expiration. Low. i. tion. Inspira- Low. 2. tion. Lower. Lower. Variable. Hollow and me- Distinct. tallic. Both characters!.... more marked. Longer than Greater. inspiration.; Blowing and Distinct. hollow. Both characters.... more marked. Longer than Greater. inspiration. or Distinct Variable. I. Inspiration. H i g h e r than Laryngeal I in bronchial whiffing. breathing. Expira- Higher. whiffing.