The hormone that stimulates heart beat is – (1) Thyroxine (2) Gastrin (3) Glycogen (4) Dopamine

The hormone that stimulates heart beat is – (1) Thyroxine (2) Gastrin (3) Glycogen (4) Dopamine
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(1) Thyroxine Explanation: Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones. It increases heart rate, cardiac contractility and cardiac output and also promotes vasodilation, which leads to enhanced blood flow to many organs.
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The hormone that stimulates heart beat is : (1) Thyroxine (2) Gastrin (3) Glycogen (4) Dopamine

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Last Answer : Thyroxine

Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action? (a) Adrenaline (b) Glucagon (c) Gastrin (d) Thyroxine

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The hormone that stimulates heart beat is

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