The Transformation of the Normal Ciliated Columnar Epithelium of the Respiratory

question 6

Multiple Choice

The transformation of the normal ciliated columnar epithelium of the respiratory tract to stratified squamous epithelium in response to the stress of chronic exposure to tobacco smoke is an example of:

• A) Anaplasia
• B) Metaplasia
• C) Neoplasia
• D) Desmoplasia

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Definitions:

Diode

A semiconductor device that allows current to flow in one direction only, used in electronics for rectification and signaling.

Relay

Any of a number of devices that receives a signal and then effects an action. In vehicle electrical circuits, relays are used to allow a small current circuit to control a large current circuit such as in a starter relay. Also known as a pilot.

Transistor

A semiconductor device used to amplify or switch electronic signals and electrical power, fundamental in modern electronic circuits.