Relative to a distal tubule, a proximal tubule is:
A) nearer the renal pelvis
B) nearer the glomerulus
C) larger
D) smaller
B
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Which is TRUE about the condition anemia?
A. It can be caused by too little iron in the diet. B. It results in reduced oxygen-carrying capacity of the blood. C. It can be caused by abnormal hemoglobin. D. It can be caused by kidney failure. E. All of the answers are true.
Where does the left ventricle send blood?
What will be an ideal response?
Which of the following variables is higher in the pulmonary circulation than the systemic circulation?
A. arterial pressure B. net capillary filtration C. total flow per minute D. vascular resistance E. venous PO2
John is a sprinter who specializes in quick and powerful bursts of speed followed by periods of rest. Jim is a marathon runner who specializes in long, steady runs. Compared to John's muscles, how are Jim's most likely to differ?
A. Jim's muscles will have more glycogen stored in his type IIb muscle fibers. B. Jim's muscles will have more mitochondria in his type I and IIa muscle fibers. C. Jim's muscles will have less myoglobin in his type I muscle fibers. D. Jim's type IIb fibers will be larger in diameter. E. Jim will have a greater proportion of type II muscle fibers and a lower proportion of type I fibers than John.