Upper and lower respiratory tract infections, illustration. In diseases such as pneumonia, a thick mucus blocks the lung airways and alveoli, reducing lung capacity. In severe cases, this can be fatal. The paranasal sinuses, ear, nose, throat, trachea and lung airways are sectioned here to show the mucus (yellow). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bavosi, John |
Bildgröße: | 4365 px × 6334 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |