The Surgical Microscope Is Often Used to Provide Illumination and Magnification

question 13

Multiple Choice

The surgical microscope is often used to provide illumination and magnification for complex procedures to the ear,laryngeal surgery,or reconstructive free flap procedures following neck surgery.A common eyepiece magnification for an otologic microscope is ´12.5,and the usual objective (lens) is ______-mm focal length (f) .A _______-mm lens is used for laryngeal surgery.

• A) 250- or 300; 400
• B) 400; 150
• C) 150; 400
• D) 400; 250 or 300

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Definitions:

Self-awareness

The conscious knowledge of one's own character, feelings, motives, and desires.

Months

Units of time, each roughly about 30 days long, that together constitute a year.

Age

The duration for which an individual or item has existed or been alive.

Laughter

A bodily reaction, often spontaneous, consisting of rhythmical, often audible contractions of the diaphragm and other parts of the respiratory system.