About 70% of carbon dioxide is transported as:    a. dissolved in plasma   b. carbaminohemoglobin   c. bicarbonate ion   d. none of the above

19.At high altitude alveolar ventilation increases as a result of? a. high PCO2 stimulating central chemoreceptors b. high PCO2 stimulating peripheral chemoreceptors c. low PO2 stimulating central chemoreceptors d. low PO2 stimulating peripheral chemoreceptors e. alkalosis stimulating both central and peripheral chemoreceptors

11. During pneumonia, the fluid that enlarges the alveolar walls a. Causes permanent damage to the cells (b. Makes it harder to breath in С. Makes it easier to breath in d. Increases the distance air must diffuse across e. Does not affect diffusion but does affect cellular respiration

98) The mean arterial pressure of a person with a blood pressure of 120/60 is ___________. Group of answer choices 80 20 40 60 180 99) After an exhalation, and before air begins to enter the lungs (before inhalation) ____________________ Group of answer choices The volume of the alveoli decreases The volume of the thoracic cavity decreases The pressure in the alveoli decreases Air flows out of the lungs 100) Theoretically, the diastolic pressure can give information regarding the health of the heart Group of answer choices False True