Buffer pairs:
a. absorb hydrogen ions
b. absorb hydroxide ions
c. prevent sharp changes in the pH of a solution
d. all of the above
d. all of the above
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Plasma membrane phospholipids
A. create a selectively permeable barrier. B. have nonpolar fatty acid tails. C. have polar phosphate heads. D. form a bilayer. E. All of the choices are correct.
Which of the following is NOT a contraindication for nasotracheal intubation?
A) Apnea B) Spinal injury C) Frequent use of cocaine D) Patients taking an anticoagulant
Initiating the withdrawal reflex in both legs at the same time would cause one to
A. maintain posture longer. B. fall. C. decrease muscle tension. D. develop resistance in one limb and reduce resistance in the other. E. hop.
Surfactant facilitates alveolar ventilation by
A. decreasing the surface tension between water molecules on the lining of the alveoli. B. decreasing thoracic compliance. C. attracting water to the alveolar surface. D. increasing the surface area for gas exchange. E. increases the surface tension between fluid and the alveoli.