Why Is Smooth Muscle Called by That Name

question 52

Multiple Choice

Why is smooth muscle called by that name?

• A) There are no collagen fibers in smooth muscle.
• B) The actin and myosin filaments are not organized.
• C) There are no receptors embedded in its cell membrane.
• D) The tissue is soft to touch.
• E) This tissue is not crumpled like other muscle tissues.

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Definitions:

Operating Income

Earnings before interest and taxes (EBIT), representing the profit from a company’s ordinary, core business operations.

Contribution Format

An income statement layout that separates fixed and variable costs, allowing for the calculation of contribution margin and easier analysis of profitability.

Operating Income

A financial metric that shows how much of a company's revenue is left over after paying for variable costs of production like wages and raw materials.

Contribution Format

A method of income statement presentation that separates fixed costs from variable costs to show the contribution margin.