Electrons Orbit an Atomic Nucleus Like Planets Orbit the Sun

question 112

True/False

Electrons orbit an atomic nucleus like planets orbit the Sun.

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Definitions:

Blood Pressure

The force exerted by circulating blood on the walls of blood vessels, often measured as an indicator of heart health.

Cardioregulatory Center

A region of the brain, specifically in the medulla oblongata, that regulates heart rate and blood pressure by coordinating the autonomic nervous and the cardiovascular systems.

Vasodilator Substance

Chemicals that relax and expand blood vessels, increasing blood flow and decreasing blood pressure.

Epinephrine

Hormone (amino acid derivative) similar in structure to the neurotransmitter norepinephrine; major hormone released from the adrenal medulla; increases cardiac output and blood glucose levels; also called adrenaline.