A Foreign Key in a Database Table Is Always

question 14

Multiple Choice

A foreign key in a database table is always:

• A)A unique identifier for a record in that table.
• B)A numeric field.
• C)The name of a UML class.
• D)A primary key in a related table.

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Definitions:

Microvilli

Tiny, finger-like protrusions on the surface of some epithelial cells that increase surface area for absorption and secretion.

Intercalated Disc

Specialized cell-cell junctions between cardiac muscle cells that facilitate the synchronized contraction of the heart.

Gap Junctions

Specialized intercellular connections that facilitate the direct transfer of ions and small molecules between the cytoplasms of adjacent cells.

Hemidesmosome

Similar to half a desmosome, attaching epithelial cells to the basement membrane.