Which of the following may occur when the lungs are exposed to noxious gases and the irritant reflex is activated?

I. Ventilatory rate increases
II. Reflex cough
III. Sneeze
IV. Bronchospasm
a. I and III only c. I, II, and III only
b. I, II, III, and IV d. I and III only

b. I, II, III, and IV

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________ Ptysis is a prefix that means spitting

Indicate whether the statement is true or false

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In which of the following forms is/are carbon dioxide transported by the blood?

1. Chemically combined with proteins 2. Ionized as bicarbonate (HCO3–) 3. Simple physical solution a. 2 only b. 3 only c. 2 and 3 only d. 1, 2, and 3

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