The Opening of the Maxillary Sinus in the Middle Meatus

question 14

Multiple Choice

The opening of the maxillary sinus in the middle meatus region is located at approximately

• A) the floor of the sinus
• B) the floor of the orbital cavity
• C) one-third upward toward the medial wall
• D) two-thirds upward toward the medial wall
• E) None of the above

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Definitions:

Simplified Expression

A mathematical expression that has been reduced to its simplest form, eliminating parentheses and combining like terms.

Algebraic Expression

A mathematical construction that comprises standard digits, placeholders such as x or y, and mathematical processes like adding, subtracting, multiplying, and dividing.

Parabola

The graph of a quadratic function, represented as a symmetric curve that opens either up or down.

Focus

A point used in the definitions of conic sections, such as ellipses and hyperbolas, from which distances are measured to define the curves.