It turned noses into fountains, lungs into bacterial sponges.
Air enters the trachea, which divides at the level of the lungs into primary bronchi.
Once the virus gets into the body, the infection spreads throughout the nose, windpipe and lungs, into the skin and other body organs.
These are small enough to get from the lungs into the blood supply and are possibly more deadly because they affect the cardiovascular system.
Marc emptied the sheep's pluck, the liver, heart and lungs, into one plastic bag, and stomach into another, after obligingly squeezing out most of the half-fermented grass.
This involves forcing air from her lungs into her throat and mouth, then closing her epiglottis and using that air to equalize the pressure in her ears.
The particles, known as PM2.5, are small enough to pass through the lungs into the bloodstream and have been linked to heart disease, stroke and lung cancer.
Oxygen-rich blood flows from the lungs into the left atrium, whose walls contract and force the mitral valve to open up.
One type of traumatic embolization occurs when lung tissue is ruptured; bubbles of air pass from the alveoli (air sacs) of the lungs into nearby capillaries and veins.
Obstetricians can delay labour for only around two days but that is just long enough, as he discovered, for cortisol to expand those tiny lungs into life.
To accomplish this, air must pass into and out of the lungs, and the respiratory gases must diffuse through the lungs into the circulation and vice versa.
