Question

a) Draw a schematic representation of transport and exchange of oxygen and carbon di
oxide during transportation of blood in humans beings and label following parts on it:
i)
ii)
iv)
Lung to capillaries
Pulmonary artery to lungs
Aorta to body
Pulmonary veins from lungs

Answer 1

Answer

Gas Exchange Between Alveolar Spaces and Capillaries

The function of the respiratory system is to move two gases: oxygen and carbon dioxide. Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.

Gas Exchange Between Alveolar Spaces and Capillaries