Question

Explain how gaseous exchange takes place in the lungs

Answer 1

Answer:

Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

Answer 2

Gaseous exchange in Lungs:

The essential capacity of the respiratory framework is to take in oxygen and dispose of carbon dioxide. The inhaled oxygen reaches the alveoli through lungs. The layers of cells covering the alveoli and the encompassing vessels are each just a single cell thick and are in extremely close contact with one another.  

Oxygenated blood goes from the lungs through the aspiratory veins and into the left half of the heart, which siphons the blood to the remainder of the body.  

Oxygen-inadequate, carbon dioxide-rich blood comes back to the correct side of the heart through two enormous veins, the prevalent vena cava and the sub-par vena cava. At that point the blood is siphoned through the aspiratory supply route to the lungs, where it gets oxygen and discharges carbon dioxide.