A buildup of fluid in the lungs caused by pneumonia leads to an increase in the
A. physiologic dead space.
B. anatomic dead space.
C. residual volume.
A
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Defense cells in blood are called white blood cells or
A) leukocytes. B) lymphocytes. C) erythrocytes. D) thrombocytes. E) immunocytes.
Which of the following is a feature that distinguishes active transport from facilitated diffusion?
A. saturation of transport rate B. requirement for a carrier molecule C. carrier molecules have specificity D. presence of a transport maximum E. requirement for metabolic energy
Which of the following does not happen during atrial diastole?
A. Blood rushes in from the vena cavae and pulmonary veins to fill the right and left atria. B. The atria then repolarize and relax. C. The increased pressure pushes blood through the AV valves into the atria. D. The atria depolarize and contract together creating decreased volume and higher pressure in the atria than the ventricles.
What is the dense outer covering of a long bone that contains many nerve fibers and is responsible for the pain of a fracture?