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Sympathetic nervous system

Decreases heart beat
Increases heart beat
Not related to heart beat
Controls heart beat
Additional Questions

Systolic pressure in adult human is

Answer

People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 metres have around 8 million. This is because at high altitude

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Systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg, the pulse pressure is

Answer

The difference between systolic and diastolic pressure in human is

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The heart muscles are

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The impulse generating (pacemaker) tissue located in the right atrium of the heart is

Answer

The most active phagocytic white blood cells are

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The opening of inferior vena cava into right auricle is regulated by

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The role of pacemaker in heart is to

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Hardening of the arteries due to deposition of cholesterol is called

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