Which of the Following Statements Are True of the Ear

question 3

Multiple Choice

Which of the following statements are true of the ear (Select all that apply) ?

• A)The cochlea contains the receptors for hearing.
• B)The auditory bones,in the order they vibrate,are the malleus,incus,and stapes.
• C)The nerves for hearing and equilibrium are the ninth cranial nerves.
• D)The receptors that detect movement of the head are hair cells in the organ of Corti.
• E)The four semicircular canals have hair cells that respond to gravity.
• F)Air pressure in the middle ear cavity is regulated by the mastoid sinus.
• G)The auditory areas are in the temporal lobes,and both the cerebrum and cerebellum are concerned with equilibrium.
• H)The utricle and saccule have accessory receptors for hearing low-pitch sounds.

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Definitions:

Contribution Margin

The amount by which sales revenue exceeds variable costs, used to cover fixed expenses and contribute to profit.

Product Costs

The total costs incurred to create a product, including direct materials, direct labor, and manufacturing overhead expenses.

Financial Reporting

The method of generating reports that reveal the financial condition of an organization to its management, investors, and regulatory bodies.

Variable Cost

Costs that change in proportion to the level of activity or volume, such as raw materials and direct labor.