Until the Turn of the 20^th Century,_______________ Were the Major

question 23

Multiple Choice

Until the turn of the 20^th century,_______________ were the major causes of illness and death in the United States.

• A) acute disorders
• B) chronic illnesses
• C) hereditary disorders
• D) accidents and homicides

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Definitions:

Left Atrium

One of the four chambers of the heart, receiving oxygenated blood from the lungs and pumping it to the left ventricle.

Premature Atrial Contractions

Early heartbeats originating in the atria, often perceived as a skipped beat and usually benign but can indicate underlying health issues.

Atria

The upper chambers of the heart.

Inferior Vena Cava

The large vein that carries deoxygenated blood from the lower half of the body into the heart.