Large surface area: human lungs contain about 500 million alveoli ... because gases have more area over which to diffuse. Good blood supply: the alveoli have a dense capillary network so that ...

Blood clots form in response to signals from the lungs of cancer patients—not from other organ sites, as previously thought—according to a preclinical study by Weill Cornell Medicine ...

The persistent shortage of the nation’s blood supply is worsened by an even greater lack of diversity among donors. According to the National Heart, Lung, and Blood Institute ( NHLBI), 40% ...