Question

scurvy
21 The diagram illustrates changes in air pressure taking place inside the lungs during a complete
cycle of breathing. Atmospheric pressure is 101 kPa.
At which point on the diagram are the ribs beginning to be lowered?
B
102-
pressure
in lungs
/kPa
101+
А
100
time
.
22 Which pathway is followed by air passing into the body?
A larynx trachea bronchi-bronchioles alveoli
B larynx trachea bronchioles bronchi alveoli
C trachea larynx bronchi alveoli → bronchioles
D trachea larynx bronchi - bronchioles alveoli
.

Answer 1

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