Which of the following structures of the nephron contains blood cells? O a. prox

Question

Which of the following structures of the nephron contains blood cells? O a. proximal convoluted tubule b. loop of Henle collecting duct d. glomerulus QUESTION 4 Mount Everest is the highest mountain in the world. At the summit, the total atmospheric pressure is 255 mm Hg. The content of oxygen in the air at the summit is 21%. Is Mt. Everest safe to climb without carrying oxygen tanks with the climbers? Explain why. a Yes. The partial pressure of oxygen at the summit is 255 mm Hg, which is adequate for human activities. O b. Yes. The content of the atmosphere at the summit is still 21%, so climbers should have adequate oxygen for life support. C. No. The total pressure at that altitude is not sufficient to support proper human ventilation of the lungs, regardless of the oxygen content. d. No. The partial pressure ofoxygen at the summit is only 53 mm Hg. That is much less than the safe concentration of oxygen for human activity. QUESTION5 What is the typical thickness of the human respiratory membrane at the alveolus? 0.5 um c. 5.0? d0.5 nm

Explanation / Answer

1. glomerlus (network of blood capillaries)

2.no. (d) partial pressure of oxygen at the summit is 50 mmhg that is much less than the safe concentration of oxygen for human activity. so the person cant breath at summit

3. 0.5 micro molar (a) respiratory membrane is the only barrier between oxygen rich air within alveloli and carbon dioxide rich blood carrired by capillaries.

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