Describe How Data Stored in a Relational Model Is Retrieved

question 96

Essay

Describe how data stored in a relational model is retrieved from tables.

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Definitions:

SA Node

The sinoatrial node, also known as the heart's natural pacemaker, is a cluster of cells situated in the right atrium of the heart that regulates the heart's rhythm by generating electrical impulses.

Bundle of His

A collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the atrioventricular node to the ventricles of the heart.

Electrocardiogram

A test that measures the electrical activity of the heart to detect heart problems and monitor heart health.

Electrical Activity

Electrical activity refers to the movement of electrically charged particles, such as electrons, which is a fundamental process within various systems including the human body's nervous and cardiac systems.