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Taking Blood Pressure and Understanding Systolic/Diastolic Pressure

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Taking Blood Pressure and Understanding Systolic/Diastolic Pressure

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Questions and Answers

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?

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?

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?

Parasympathetic nervous system Signup and view all the answers

Why does systolic pressure increase drastically compared to diastolic pressure during exercise?

Increased blood entering arterioles during systole Signup and view all the answers

What stimulates the baroreceptor reflex in the body?

Sudden body movement Signup and view all the answers

What is the correct order of waveforms in an ECG tracing?

P wave-QRS-T wave Signup and view all the answers

Which blood pressure value indicates the diastolic pressure?

80 mmHg Signup and view all the answers

What does the P wave represent in an ECG tracing?

Atrial depolarization Signup and view all the answers

What is the average MAP (Mean Arterial Pressure) calculation formula?

(2 x Diastolic Pressure + Systolic Pressure) / 3 Signup and view all the answers

Which segment of an ECG tracing changes the most with a change in heart rate?

T wave Signup and view all the answers