- 2-

Ventilation and perfusion : .

: - " , " . .

VT

': ' . (Kelvin: (K = 273 + C

V .

1 P

: , '

[ gas ]dissolved = x Pgas

: . - . -Alveoli

- . " : ". " " . :Pulmonary Circulation - . cardiac output

- terminal .bronchioles Sheet flow

:

, , . " . ) ( Angiotensin converting enzyme Converts angiotensin I to angiotensin .II

62

.

Bronchial circulation separate, supplies nutrition to larger airways .((