Table 2

Passively expelled volumes in ml

Lung number	Mean initial airway pressure*(cm H₂O)	1 s	5 s	10 s	15 s	20 s	Final total volume (ml)	Time to total volume (s)
*Average of three curves.
Bronchial pathway
1	20.3	1102	1853	1941	1974		1974	15
2	20.6	700	1488	1588	1631	1681	1681	20
3	12.2	390	826	1080	1235	1460	1528	42
4	9.6	260	696	1035	1267	1444	1669	28
5	9.8	400	750	822	853	870	926	26
6	8.1	153	400	582	704	800	953	37
7	10.8	131	390	503	544	596	632	47
Spiracle pathway
1	14.0	128	446	793	1070	1258	1476	30
2	20.2	150	574	960	1163	1295	1327	30
3	15.1	410	962	1507	1895	2074	2384	38
4	8.1	280	1190	1603	2044	2361	3205	44
5	10.1	340	944	1308	1509	1636	1662	32
6	9.4	300	1283	1950	2444	2783	3049	25
7	13.7	253	743	1012	1105	1152	1197	30
All airways
7	14.4	469	978	1125	1175	1197	1200	25