When Each Record in the Primary Table Matches Zero, One

question 6

Short Answer

When each record in the primary table matches zero, one, or more records in the related table, and when each record in the related table matches at most one record in the primary table, a(n) ____________________ relationship exists.

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Definitions:

Systole

The phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries.

Heart

A muscular organ that pumps blood through the circulatory system by rhythmic contraction and expansion.

Pulmonary Trunk

The major blood vessel that originates from the right ventricle of the heart and bifurcates into the left and right pulmonary arteries, carrying deoxygenated blood to the lungs.