Across
- 3. A pulmonary embolism is a blockage of a branch of a pulmonary ______.
- 5. Chamber shared by the respiratory and digestive system.
- 7. Parasympathetic activation contracts muscle, causing ______________.
- 8. __________ activation relaxes muscle, causing bronchodilation.
Down
- 1. The upper respiratory system filter, warm, and _______ incoming air.
- 2. Inelastic upper pair of ligaments.
- 4. A cartilage of the larynx that prevents entry of liquids and food into respiratory tract.
- 6. These are the air-filled pockets where gas exchange occurs.