Which of the following conditions would result in a systemic arterial PO2 lower than is typical of a healthy person at sea level?
A. Breathing regular air in a hyperbaric chamber (higher that normal atmospheric pressure)
B. Having iron-deficiency anemia
C. Traveling to high altitude
D. Maintaining alveolar ventilation constant while decreasing metabolic rate
E. Breathing 100% oxygen
Answer: C
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Late one night, while studying for your anatomy class, you open a box of saltine crackers to do a little snacking. After chewing on a starchy morsel for a few minutes, you begin to notice a sweet taste in your mouth. What accounts for this?
A. Activity of bacteria in the mouth lowers the pH. B. Phagocytosis by the pharyngeal tonsils produces by-products that taste sweet. C. "Sweet" taste receptors are slower to respond than others. D. Salivary amylase activity E. Esophageal reflux
When will the blood pressure be greater?
A) when the peripheral vessels dilate B) when the peripheral vessels constrict
Probenecid inhibits the active resorption of uric acid in the kidney, which leads to increased urinary excretion of uric acid. Explain why this drug would be useful in treating gout
What will be an ideal response
Two hormones that have opposing effects are called ________.
Fill in the blank(s) with the appropriate word(s).