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If 8-year-old Billy understands that having three collies and four poodles results in having more total dogs than poodles, what ability has he developed?
Baroreceptors
Sensory nerve endings found in the walls of arteries and the heart that sense changes in blood pressure.
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.
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