breathing and exchange of gases

5:00

22:39

2:16

23:10

19:07

33:48

33:48

1:24

5:58

9:56

46:15

7:09

2:59

2:59

2:21

2:44

4:53

7:33

2:50

3:14

3:00

23:50

4:16

4:55

14:52

2:02

13:41

6:23

2:59

2:11

3:40

10:01

1:55

24:20

18:50

2:03

14:26

3:36

2:40

2:24