A test that measures the electrical activity of the heart is called a(n)
A. coronary arteriogram.
B. electrocardiogram.
C. electroencephalogram.
D. echocardiogram.
B. electrocardiogram.
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The suffix in appendectomy means:
A) appendix. B) surgical excision. C) surgical opening. D) inflammation.
For most young adults, a moderate-intensity activity is similar to ________ and a vigorous-intensity activity is like ________.
A. dancing; jogging B. running; casual walking C. brisk walking; jogging D. dancing; casual walking
Nicotine stimulates the adrenal glands to produce ____________________, a hormone that increases blood pressure and speeds up the heart rate by 15 to 20 beats a minute
Fill in the blank(s) with correct word
Compared to competition at sea level, distance-running performances are generally not as good when conducted at high altitude. This is due to the
A. lower PO2 in the inspired air. B. lower air density. C. greater reliance on creatine phosphate for energy. D. greater reliance on anaerobic glycolysis for energy.