Which of the following stimulates the heart?

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(B) Epinephrine (also known as adrenaline) is a hormone and neurotransmitter that plays a key role in the body's 'fight-or-flight' response.When relea

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Epinephrine

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(B) Epinephrine (also known as adrenaline) is a hormone and neurotransmitter that plays a key role in the body's 'fight-or-flight' response.When released,it acts on the heart by increasing the heart rate and the force of contraction,thereby stimulating cardiac activity.Mescaline,$LSD$,and Hashish are hallucinogenic or psychoactive substances that do not primarily function as cardiac stimulants in the same physiological manner as epinephrine.

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