Welcome to Biological Science Advanced Studies. This site is designed for biology students of A-level, AS and A2, covering the related topics in Biology and Human Biology.
left lung has two section or lobes the right has three sections or lobes.
at the alveoli (small air sacks)this is where diffusion occurs, oxygen goes into blood stream and carbon dioxide goes out. plura is athin membrane that helps lungs slide bac and forth. lymph nodes are immune system nodes lymphatic vessels carry bacteria nd other substances away from lungs such as cancer cells.
left lung has two section or lobes the right has three sections or lobes.
at the alveoli (small air sacks)this is where diffusion occurs, oxygen goes into blood stream and carbon dioxide goes out. plura is athin membrane that helps lungs slide bac and forth. lymph nodes are immune system nodes lymphatic vessels carry bacteria nd other substances away from lungs such as cancer cells.