Vocabulary: Respiratory System
Across
- 2. a sheet of skeletal muscle below the lungs, that pushes and pulls as we inhale and exhale
- 4. wind-pipe; a tube that connects the larynx to the bronchus/bronchi
- 5. tiny sacs of lung tissue, specialized for the movement of gases between air and blood
- 7. voice box; a passageway for air moving from pharynx to trachea; contains vocal cords
- 10. short, hair-like structures in the nasal passage, trachea and bronchus that filter and sweep contaminants from the respiratory tract
- 11. a flap of elastic cartilage that closes over the larynx when food passes by during swallowing
- 12. the primary organs of the respiratory system
Down
- 1. tiny blood vessels that surround the alveoli, and take part in the exchange of oxygen and carbon dioxide gases
- 3. progressively smaller tubular branches of the airways
- 6. The two major air passageways that branch from the trachea, and direct air into the left and right lungs
- 8. a protective secretion in the respiratory system; helps trap particles like pollen or smoke
- 9. is one of the two places where the respiratory system begins; lead to the oropharynx
- 13. is one of two places where the respiratory system begins; leads to the nasal cavity/nasopharynx