8 results for “lungs”

1. The Human Body

   Lungs and Breathing

   lungs in a condition called COPD, and causes most lung cancers. At high altitude, the air is thinner

   Article · 4 min read

   

2. The Human Body

   The Heart and Blood

   lungs. There it picks up oxygen and turns bright red, and flows back into the left

   Article · 4 min read

   

3. The Human Body

   The Skeleton and Bones

   lungs and expands with each breath. The pelvis is a bowl of fused bones that carries

   Article · 5 min read

   

4. Animals

   Insects

   lungs. Air enters through small holes along the sides of the body and travels through tubes

   Article · 3 min read

   

5. Animals

   Reptiles and Amphibians

   lungs, losing their tails and gills, and emerging onto land. Their skin stays thin and moist

   Article · 3 min read

   

6. Animals

   Mammals

   lungs. These traits define the mammals, a group of about 6,500 species that includes the biggest

   Article · 4 min read

   

7. Chemistry

   Acids and Bases

   lungs and kidneys adjust how much carbon dioxide and acid you get rid of. If blood

   Article · 3 min read

   

8. Animals

   Birds

   lungs on both the in-breath and the out-breath, extracting far more oxygen than a mammal

   Article · 3 min read