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you breathe
The lungs.
100m2
Damage to the lungs
pulmonary infiltrate
Emphysema is the irreversible enlargement of the air spaces in the lungs.
The air spaces in the lungs are called pulmonary alveoli. They are where gas exchange occurs in the lungs of mammals.
Mediastinum
The diaphragm. When it contracts, it increases the space in the chest cavity, and also lowers the pressure inside it. This causes air to be sucked into the lungs. Likewise, when it relaxes, the spaces becomes smaller, and the pressure increases and forces the air out.
The bronchial tubes (or bronchi) are the large tubular structures within the lungs. These carry air into the lungs from the trachea. They branch into smaller tubes called bronchioles, and then to the smallest tubes that contain the alveoli (air sacs) of the lungs.
you have 2 lungs. they are both located inside your rib cage, protected by the rib bones.
Empty spaces within the body are commonly referred to as cavities. These include the cranial cavity (housing the brain), thoracic cavity (housing the heart and lungs), and abdominal cavity (housing the digestive organs). These cavities help protect and support the internal organs.
smaller
no
Alveoli are grape-like air spaces at the distal ends of the bronchial upside-down tree.
The branching tubes within the lungs end at small alveoli.