In which of the following sequences does PO2 progressively decrease?
A. Body tissue, aorta, alveolar air
B. Blood in aorta, atmospheric air, body tissues
C. Body tissue, arterial blood, alveolar air
D. Body tissue, alveolar air, arterial blood
E. Atmospheric air, blood in aorta, body tissues
Answer: E
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Indicate whether the statement is true or false
Compare the absolute refractory period with the relative refractory period
A) During the absolute refractory period the membrane can respond only to a larger-than-normal stimulus. During the relative refractory period the membrane cannot respond to further stimulation. B) During the absolute refractory period the membrane cannot respond to further stimulation. During the relative refractory period the membrane can respond to any stimulus. C) During the absolute refractory period the membrane is highly responsive to stimuli. During the relative refractory period the membrane is unresponsive to stimuli. D) During the absolute refractory period the membrane cannot respond to further stimulation. During the relative refractory period the membrane can respond only to a larger-than-normal stimulus. E) During the absolute refractory period the membrane is highly responsive to stimuli. During the relative refractory period the membrane can respond only to a larger-than-normal stimulus.
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Indicate whether the statement is true or false