Question

How alveoli helps in exchange of gasses​

Answer 1

Answer:

• alveoli have thin wall and nearer it consists of blood capillaries through which the exchange of gases like co2 and o2 exchange
• when the higher concentrations of co2 in blood capillaries then then it is come in alveoli through it's thin wall
• when the higher concentrations of o2 in alveoli is high then the o2 come in the blood capillaries.
• it is also called the respiratory unit of lungs
• each lungs contains 5 million numbers of alveoli