Answer Happy

11. 25 2. The right lung has lung has called the Superior & Inferior. 3. When the trachea reaches the lungs, it branches into the 5 6. into the •Secondary bronchi keep branching until they reach the Alveoli 4. The alveoli are surrounded by capillaries. Gas exchange between the blood and the alveoli in the lungs occurs by diffusion across the thin respiratory membrane. The process of gas exchange is called Capillary Within the alveoli of the lungs, move into the blood capillaries and will move from the blood into the from collapse. 3 lobes separated by fissures, the left lobes separated by a fissure and a depression for the heart • Primary bronchi, which branches bronchi, which branches again into the Tertiary •Brochicles. bronchi. The which terminate air sacs known as 1. Muscle to of the causes the size (volume) of the lungs to کے will Pulmonary Ventilation A. Pulmonary ventilation is also known as B. Air flows from a pressure to a C. Inhalation (Inspiration) occurs when lung pressure is lower than atmospheric pressuro is produced by type Il alveolar cells and prevents the alveoli pressure. and and the pressure inside the lungs 2. The change in lung pressure causes air to move from the atmosphere (where the pressure is higher) and into the lungs (where the pressure is lower).