We couldn't be where we are without microscopes and other technology. We couldn't study almost anything we know without these modern inventions.
They generally test for infections, changes in body tissue and organs, and they test for the presence of chemicals such as drugs or poisons.
A) sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, Purkinje fibers.
Heart rate decreased suddenly and then MAP immediately fell because peripheral blood vessels were extensively vasodilated.
Explanation:
A VO2 max test is a clinical test done in a lab and is the ‘golden standard’ for measuring the potential and cardio-respiratory endurance of athletes and bikers.
It measures the oxygen carrying capability through a graded step test which determines the average power output. The maximal oxygen uptake along with cardiorespiratory responses is measured.
As per exercise physiology, the heart rate and cardiac output increases with exercise. When the potential is less, the resistance decreases, heart rate and mean arterial pressure also decrease
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The answer is D.
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