Clinical tuberculosis . Fig. 49.—Showing the relationship of the anterior surface of the lung as conlined bythe bony thorax to the soft structures forming the anterior surface of the chest. they are on a level with the sixth rib in the mammary line, theeighth in the axillary line, the tenth in the scapular line, and atthe junction of the eleventh rib with the vertebra at the vertebralborder. (See pages 322, 323, and 324.) The apex is the nearest the surface Ijetween the two headsof the sternocleidomastoideus, as before mentioned. On ordi-nary quiet respiration the movement of the lower border
Clinical tuberculosis . Fig. 49.—Showing the relationship of the anterior surface of the lung as conlined bythe bony thorax to the soft structures forming the anterior surface of the chest. they are on a level with the sixth rib in the mammary line, theeighth in the axillary line, the tenth in the scapular line, and atthe junction of the eleventh rib with the vertebra at the vertebralborder. (See pages 322, 323, and 324.) The apex is the nearest the surface Ijetween the two headsof the sternocleidomastoideus, as before mentioned. On ordi-nary quiet respiration the movement of the lower border of thelung is scarcely to be determined by percussion and palpation,being only 1 to 2 cm.; but the difference between forced inspira- ^. Lobus sin. An. pulmon. Auricula sin. cordisVa1v. bicuspi-dalis u. Ventr, cordis sin. Diaphragma Fig. 50.—Frontal section through thorax of 26-year old man. Section made midwaybetween mammary and axillary line. (Viewed from the front.) The thickness of thesoft tissues covering the lung may be seen and their influence on palpation, percussion,and auscultation may be inferred from this figure. It also shows the relationship of thelungs themselves to the anterior surface of the chest wall. (Corning.) DIAPHKAUM AT DIFFERENT AGE PERIODS 321 tioii and forced expiration can be readily determined for itamounts from 6 to 10 em. Position of Diaphragm at Different Age Periods.—The posi-tion of the diaphragm varies with the age of the patient. , 55, and 56, page 324i (jMchnert), show the diaphragm atbirth, at 36 years of age, and at 72 years of age. In develop-ment, the diaphragm comes from high up in the cervical regionand consequently rece
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