The results of the ECG with various leads (arrangements of positive and negative electrodes) are identical, so it does not matter which lead is used.
Answer the following statement true (T) or false (F)
False
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Normal interstitial fluid has a PO2 40 mm Hg and PCO2 of 45 mm Hg. As a result,
A) both oxygen and carbon dioxide diffuse into the capillaries. B) both oxygen and carbon dioxide diffuse out of the capillaries. C) no diffusion occurs. D) oxygen diffuses out of the capillaries and carbon dioxide diffuses in. E) oxygen diffuses into the capillaries and carbon dioxide diffuses out.
Normal quiet breathing is controlled by the
a) Pontine respiratory group b) Medullary respiratory center dorsal respiratory group c) Medullary respiratory center ventral respiratory group d) Medullary respiratory center dorsal respiratory group and medullary respiratory center ventral respiratory group e) all of these
Which of the following are good tests of the equilibrium apparatus?
A) standing and simultaneously beginning a task that requires mental concentration B) being rotated on a chair, after which the observers look for nystagmus C) walking in a straight line, one foot in front of the other D) walking in a straight line placing one foot in front of the other, standing and simultaneously beginning a task that requires mental concentration, and being rotated on a chair, after which the observers look for nystagmus
The hemoglobin found in erythrocytes is able to chemically attach to
A. nitrogen. B. oxygen. C. carbon dioxide. D. oxygen, carbon dioxide, and nitrogen. E. both oxygen and carbon dioxide.