Which of the Following Can Be Considered a Function of the Paranasal

question 39

Multiple Choice

Which of the following can be considered a function of the paranasal sinuses?

• A) The paranasal sinuses are passageways for nerves to pass through.
• B) Sinuses have rough patches that aid in muscle attachment.
• C) Sinuses are often referred to as vestigial, anatomical features with no know function.
• D) Sinuses take away a minimal amount of strength from bones while reducing the weight of bones.

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Definitions:

BRCA1

A gene located on chromosome 17, playing a critical role in the repair of DNA breaks; mutations can significantly increase the risk of breast and ovarian cancer.

BRCA2

A gene located on chromosome 13 that produces a protein involved in DNA repair and plays a key role in maintaining the genetic stability of cells.

Mitotic Spindle

A structure composed of microtubules that segregates chromosomes into daughter cells during mitosis.

Microtubules

Cylindrical structures that are part of the cytoskeleton in all eukaryotic cells, involved in cellular movement, shape, and division.