-------site of gas exchange.
a) Bronchioles
b) Alveoli
c) Lung

Which of the following is not true about inspiration?
a) Intake of air into lungs.
b) Contraction of internal intercostal muscles.
c) Increase in volume of thoracic cavity.

6) The surface of the alveolar cells is dry T/F

Explratio is intake of air into lungs T/F

Inspiration Is decrease in volume of thoracic cavity T/F

In Inspiration Relaxation of external intercostal muscles ( muscles present between ribs ) and contraction of internal intercostal muscles occur . T/F

The typical value of residual volume is

a ) 500ml
b ) 3000 ml
c ) 1200 ml

The Po2 in alveoli equals to
----
a ) 160 mmhg
b ) 100 mmhg
c ) 105 mmhg

بعد؟؟

The Po2 of blood in the pulmonary veins and systemic arteries is about 5 mmHg more than that in average alveolar T/F

Decrease in ventilation lead to
a ) Increase in alveolar Po2
b ) Decrease in alveolar Po2
c ) Decrease in alveolar Pco2

ادعولناااا 💔

الجواب. Lobes

Alveoli

300 million

Exchange gases with blood

T

4L of frish air flows
5L of blood flows

Conducting zone
Respiratory zone