RESPIRATION H3 



(1) Take a thoracic perimeter with the chest in repose. Measure 

 different diameters of the tracing and multiply by five to reduce to 

 actual measurements. 



(2) Take a tracing at end of forced expiration; at end of forced 

 inspiration. Compare diameters. 



(3) Make a series of these tracings for different individuals. 

 Compare. 



(4) Do different individuals of the class represent different types 

 of contour, as broad, medium, and deep? 



(5) Which type of chest is capable of adding the greatest area 

 of contour by expansion? 



IV. LUNG CAPACITY (CHEST MEASUREMENTS, RESPIRATORY 

 PRESSURE). RECORDING OF ANTHROPOMETRIC DATA. 



1. Instruments. Spirometer (Fig. 60); pneomanometer (Fig. 61); 

 meter tape; steel calipers; standard, with horizontal arm for meas- 

 uring height; scales for taking weight. 



2. Observations. (1) Test with spirometer the lung capacity 

 of each member of the division. May differences in lung capacity 

 be accounted for by difference in stature, condition, occupation, or 

 habit? 



(2) Take with the meter tape the girth of chest over the nipples 

 in a plane at right angles with the axis of the thorax. 



(a) With chest in normal repose. 



(b) At the end of forced expiration. 



(c) At the end of forced inspiration. 



(3) Take the girth of chest over the juncture of the ninth rib with 

 its cartilage, holding the tape in a plane at right angles with the axis 

 of the thorax. 



(a) With the chest in repose. 



(b) At the end of forced expiration. 



(c) At the end of forced inspiration. 



(4) With the calipers measure the dorsoventral diameter at the 

 level of the nipple, holding the calipers in a plane perpendicular to 

 the axis of the thorax. 



(a) Normal; (b) after forced expiration; (c) after forced inspiration. 



(5) Take the lateral diameter in the nipple plane. 



(a) Normal; (b) after forced expiration; (c) after forced inspiration. 



(6) Take the lateral diameter at the ninth rib. 



(a) Normal; (b) after forced expiration; (c) after forced inspiration. 



(7) Test with pneomanometer the force of inspiration and expira- 

 tion. Let each member of the division test with the pneomanometer 

 the maximum positive pressure which he is able to produce in the 

 respiratory passages during expiration. 



