In an ECG, Researchers Detect Heart Rate by Measuring

question 23

Multiple Choice

In an ECG, researchers detect heart rate by measuring:

• A) the sound of the heart beating.
• B) the electrical activity generated by heart muscle in the process of contracting.
• C) the change in pressure in the chest cavity, as the heart thumps.
• D) the change in pressure in the blood vessels after the ventricles contract.

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Definitions:

Equilibrium

A state of balance or stability, often referring to the body's ability to maintain its center of gravity, or in psychology, a state of mental or emotional balance.

Assimilation

The process by which a person or a group's language and/or culture come to resemble those of another group.

Assimilation

The method through which people or groups from various ethnic backgrounds become assimilated into a society's prevailing culture.

Piaget's Concept

A theory developed by Jean Piaget that describes the cognitive development of children in four stages from birth to adolescence.