Mucus Occurs in Both the Respiratory and Digestive Tracts

question 9

Multiple Choice

Mucus occurs in both the respiratory and digestive tracts.What is its main immunological function?

• A)sweeping away debris
• B)physically trapping pathogens
• C)destruction of pathogens because it is acidic
• D)increasing oxygen absorption

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Definitions:

Gage

A measurement or inspection tool used to verify the conformity of parts to specified tolerances or dimensions.

Cutting-Plane

An imaginary plane where an object is cut to study its interior structure in engineering and architectural drawings.

Secondary Datum

A reference point, axis, or plane used in addition to the primary datum to provide further geometric control on a manufactured part.