1. Identify bronchus in this diagram.   A   B   C   D   Hint Half-n-half Clue   2. Write the correct sequence of the pathway through which air travels after entering the body. A. Larynx, pharynx, trachea bronchioles B. Pharynx, larynx, trachea, bronchioles C. Pharynx, larynx, bronchioles, trachea D. Pharynx, trachea, larynx, bronchioles   A   B   C   D   Half-n-half Clue   3. True or False: Trachea contains 16-20 'C'-shaped cartilaginous rings.   True   False   4. Which cells of the blood carry oxygen to different parts of the body?   True   Red blood cells   D   B   Half-n-half Clue   5. True or False: Two-layered membrane which covers the lungs is known as pericardium.   True   False   6. Spirometer measures: A. Capacity of lungs B. Volume of air inhaled and exhaled C. Residual air D. All of these   A   B   C   D   Half-n-half Clue   7. Which process does not occur in the nasal cavity? A. Trapping of large foreign bodies B. Exchange of gases C. Humidification of inhaled air D. Warming of inhaled air   A   B   C   D   Half-n-half Clue