PATHOLOGY

Detailed explanation-1: -It is estimated that the adult human lung has on the order of 300 million alveoli, with a total surface area approximately the size of a tennis court. The alveoli are thin-walled structures with a total surface area of about 100m2. This is roughly half the size of a tennis court.

Detailed explanation-2: -Large surface area: human lungs contain about 500 million alveoli, which creates a surface area around half the size of a tennis court. This speeds up diffusion because gases have more area over which to diffuse.

Detailed explanation-3: -You have two lungs, but they aren’t the same size the way your eyes or nostrils are. Instead, the lung on the left side of your body is a bit smaller than the lung on the right. This extra space on the left leaves room for your heart. Your lungs are protected by your rib cage, which is made up of 12 sets of ribs.

Detailed explanation-4: -At the end of these airways are tiny air sacs called alveoli. This is where gas exchange happens. Under a microscope, the inside of your lungs look like a giant sponge. There are around 300 million air sacs in your lungs and if they were spread out, they would cover an area roughly the size of a tennis court!