The Standard Electrocardiogram Shows the Heart's Electrical Activity from Different

question 25

Multiple Choice

The standard electrocardiogram shows the heart's electrical activity from different angles through "leads." How many leads are recorded?

• A)5
• B)7  
• C)10
• D)12

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Definitions:

Frequency

The rate at which an event or phenomenon occurs over a specific time period, often used in the context of exercise or other routines.

Intensity

The level of effort or exertion required by a physical activity or exercise, often categorized as low, moderate, or high.

Mitochondria

Organelles found in most cells, responsible for producing energy by converting food into adenosine triphosphate (ATP) through the process of oxidative phosphorylation.

Sarcoplasmic Reticulum

A structure found within muscle cells that stores and releases calcium ions, playing a key role in muscle contraction.