Alveoli- these are the small sac-like structures where gas exchange occurs with the blood. Its creates an ideal site for gas exchange between the air in the lungs and the blood in the capillaries.
Capillary system is where gas exchange occurs
Respiration is a process of gas exchange. Respiration is necessary to supply cells with oxygen for metabolism and to remove the waste by product carbon dioxide.
Oxygen
alveoli
red blood cells
External Respiration is where gasses are absorbed into the blood through the alveolar capillary beds. Internal respiration is where the gasses are transferred into the cells from the blood.
through the blood vessels
Gas exchange (between blood and air).
Gas exchange.
They can control gas exchange in the tissues. When they are constricted, there is almost complete no gas exchange. The blood just bypasses the tissues.
The alveoli