Question

paths of coronovirus from throat to alveoli explain me​

Answer 1

Answer:

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.

and Corona virus stay in mucus till 7-8days and then with air inhaled it goes down to lungs.....