1. Spirometer measures: A. Capacity of lungs B. Volume of air inhaled and exhaled C. Residual air D. All of these   A   B   C   D   Hint Half-n-half Clue   2. Which cells of the blood carry oxygen to different parts of the body?   Alveoli   Red blood cells   Larynx   Epiglottis   Half-n-half Clue   3. Exchange of air occurs in _______ which are also known as 'air sacs'.   Alveoli   Bronchi   Bronchioles   Alveolar ducts   Half-n-half Clue   4. Normal rate of respiration in an adult human being is _______ times/ minute. A. 10-12 B. 12-14 C. 16-18 D. 22-24   A   B   C   D   Half-n-half Clue   5. Identify bronchus in this diagram.   A   B   C   D   Half-n-half Clue   6. 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   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