Which of the descriptions is not descriptive of REM (rapid eye movement) sleep?
A. It represents 20-25% of a person's "sleeptime."
B. Visible movements of the eyes resembling those of one tracking the movements of objects in space, watching TV, and so on
C. Oxygen consumption decreases by comparison to NREM sleep and in an alert wakeful state.
D. Skeletal muscle activity is markedly reduced, except for the extraocular and respiratory muscles.
E. Difficulty arousing the sleeper
Answer: C
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1. The alveolar ventilation rate is the best index of effective ventilation. 2. In chronic bronchitis, mucus production is decreased and this leads to the inflammation and fibrosis of the mucosal lining of the bronchial tree. 3. Labored breathing is termed dyspnea 4. The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase. 5. Increased temperature results in decreased O2 unloading from hemoglobin.
The abdominal aorta divides into three arteries at its terminus; what are they?
What will be an ideal response
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A) ATP in muscle fiber. B) ATP in muscle fiber and phosphocreatine. C) carbohydrate oxidation. D) phosphocreatine. E) fat oxidation.
Which lobe is deep to the lateral sulcus and can only be seen by removing some of the overlying cerebrum?
A. Occipital lobe B. Insula C. Frontal lobe D. Temporal lobe E. Parietal lobe