The Eardrum Is A

question 91

Multiple Choice

The eardrum is a:

• A)part of the outer ear that vibrates when sound waves hit it.
• B)thin membrane leading to the inner ear.
• C)coiled tube in the inner ear filled with fluid that vibrates in response to sound.
• D)vibrating structure that runs through the center of the cochlea,dividing it into an upper chamber and a lower chamber and containing sense receptors for sound.

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Definitions:

Coarse Adjustment Knob

The coarse adjustment knob is a control on a microscope used to bring the specimen into general focus by moving the stage up or down.

Fine Adjustment Knob

A control on a microscope used to make small adjustments in focus, refining the clarity and detail of the viewed specimen.

Coverslip

A thin piece of glass or plastic used to cover specimens on a microscope slide, protecting the sample and lens.

Eyepiece

The lens or group of lenses at the viewing end of a telescope or microscope, through which the observer looks to see the magnified image.