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Questions and Answers
Why does heart rate decrease during the dive reflex?
Why does heart rate decrease during the dive reflex?
- Activation of the Sympathetic nervous system
- Increased blood flow to exercising muscles
- Activation of the Parasympathetic nervous system (correct)
- Higher blood pressure
What causes the sensation of feeling a pulse in the body?
What causes the sensation of feeling a pulse in the body?
- Opening and closing of the heart valves
- Throbbing of blood through arteries (correct)
- Baroreceptor activation
- Blood being pooled in lower extremities
What effect does reactive hyperemia have on vessel diameter?
What effect does reactive hyperemia have on vessel diameter?
- No change in vessel diameter
- Vessels expand (correct)
- Decrease in blood flow through arterioles
- Vessels constrict
Which part of the autonomic nervous system is involved in postural changes affecting heart rate?
Which part of the autonomic nervous system is involved in postural changes affecting heart rate?
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Why does systolic pressure increase drastically compared to diastolic pressure during exercise?
Why does systolic pressure increase drastically compared to diastolic pressure during exercise?
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What stimulates the baroreceptor reflex in the body?
What stimulates the baroreceptor reflex in the body?
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What is the correct order of waveforms in an ECG tracing?
What is the correct order of waveforms in an ECG tracing?
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Which blood pressure value indicates the diastolic pressure?
Which blood pressure value indicates the diastolic pressure?
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What does the P wave represent in an ECG tracing?
What does the P wave represent in an ECG tracing?
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What is the average MAP (Mean Arterial Pressure) calculation formula?
What is the average MAP (Mean Arterial Pressure) calculation formula?
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Which segment of an ECG tracing changes the most with a change in heart rate?
Which segment of an ECG tracing changes the most with a change in heart rate?
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