The knobby region of a long bone at the end that is farthest from the trunk is the
A. distal diaphysis.
B. proximal epiphysis.
C. distal epiphysis.
D. superior diaphysis
C
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Compounds that diffuse passively across the blood-brain barrier
A) are lipid soluble. B) do so in proportions equal to their presence in the bloodstream. C) are water soluble. D) move equally freely in both directions. E) None of the answers are correct.
The P wave of the electrocardiogram is a signal from
A) depolarization of the SA node. B) depolarization of the AV node. C) depolarization of the atria. D) repolarization of the atria. E) depolarization of the ventricles.
What purpose do mediators of inflammation serve?
A. They cause blood vessels to dilate. B. They cause redness at the site of the injury. C. They cause pain at the site of the injury. D. They cause injured tissue to swell.
What is the function of thrombocytes?
A. To form platelet plugs and release clotting factors B. To transport oxygen and carbon dioxide C. To fight off infection D. All of these answers are correct.