Roughly What Percentage of the Populations of Chicago,New York,and Detroit

question 4

Multiple Choice

Roughly what percentage of the populations of Chicago,New York,and Detroit was made up of immigrants by 1890?

• A) 20-30 percent
• B) 40-50 percent
• C) 50-60 percent
• D) 60-70 percent
• E) 80-90 percent

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Definitions:

Diastole

The phase of the heart cycle when the heart muscle relaxes and allows the chambers to fill with blood.

Ventricular Filling

The phase of the cardiac cycle in which the ventricles fill with blood, following diastole and before systole.

AV Valves

The atrioventricular valves, which include the mitral and tricuspid valves, control blood flow between the atria and ventricles in the heart.

Semilunar Valves

Heart valves located at the bases of the aorta and the pulmonary artery that prevent blood from flowing back into the ventricles.