Which of the Following Statements Is False

question 289

Multiple Choice

Which of the following statements is false?

• A)The semicircular canals are each oriented in a different plane: horizontally, vertically, and obliquely.
• B)The two middle ear openings in the temporal bone are the round window and oval window.
• C)The throat is also known as the pharynx.
• D)The turbinates are three long, bony projections coming off of the hard palate.

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Definitions:

Cholesterol

A waxy, fat-like substance found in all cells of the body, necessary for the production of hormones, vitamin D, and bile acids.

Basal Body

Structure involved in the organization and anchorage of a cilium or flagellum. Structurally similar to a centriole; each is in the form of a cylinder composed of nine triplets of microtubules (9 × 3 structure).

Flagellum

A long, whiplike structure extending from certain cells and used in locomotion. (1) Eukaryote flagella consist of two central, single microtubules surrounded by nine double microtubules (9 + 2 structure), all covered by a plasma membrane. (2) Bacterial flagella are filaments rotated by special structures located in the plasma membrane and cell wall. (3) Archaea have a rotating appendage, an archaellum, for motility.

Micrometer

A precision measuring instrument capable of measuring dimensions to a very small fraction of a millimeter or inch.