Explain the Purpose of an ER Diagram in Database Design

question 90

Essay

Explain the purpose of an ER diagram in database design.

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Definitions:

Pulmonary Capillaries

Tiny blood vessels in the lungs where gas exchange occurs, allowing for the uptake of oxygen and the release of carbon dioxide.

Left Atrium

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

Bicarbonate Ion

A negatively charged ion (HCO3-) that is a significant component of the blood buffer system, regulating pH balance.

Fetal Hemoglobin

A type of hemoglobin that is present in fetuses and newborn babies, offering higher oxygen affinity than adult hemoglobin.