When a human breathes in, their chest muscles move ... which carries the oxygen to all the cells in the body. The alveoli absorb carbon dioxide from the blood. When we breathe out, the chest ...

When people breathe in, oxygen moves through the alveoli to the blood, so that oxygen-rich blood can supply the body. Carbon dioxide from the blood moves through the alveoli to the lungs ...

Changes in the cellular response during lung damage caused by SARS-CoV-2 – the virus behind COVID-19 – have been uncovered. Researchers reveal distinct phases where waves of immune responses give way ...