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. True or False: Breathing through the mouth is considered as good as breathing through the nose.   True   False   3. True or False: Two-layered membrane which covers the lungs is known as pericardium.   True   False   4. Identify bronchus in this diagram.   A   B   C   D   Half-n-half Clue   5. Which cells of the blood carry oxygen to different parts of the body?   True   Red blood cells   False   B   Half-n-half Clue   6. Which part of the respiratory tract is also known as the voice box?   Trachea   Epiglottis   Larynx   Pharynx   Half-n-half Clue   7. 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