Which of the Following Phases of Swallowing Is Voluntary

question 44

Multiple Choice

Which of the following phases of swallowing is voluntary?

• A) The tongue pushing the bolus of the food towards the pharynx
• B) The secretion of saliva rich in digestive enzymes by the parotid gland
• C) The raising of the soft palate to cover the opening to the nasal cavity
• D) The contraction of pharyngeal muscles to pull the pharynx towards the food
• E) The peristaltic wave in the pharynx and esophagus to push the food towards the stomach

---

Definitions:

Monopolistically Competitive Industry

A market structure where many companies sell products that are substitutes but with distinctions in branding and quality, allowing firms some control over pricing.

Differentiated Products

Products that are distinguished from similar products by distinctive characteristics, such as quality, design, or brand.

Barriers to Entry

Factors that prevent or hinder companies from entering a particular market, such as high start-up costs, strict regulations, or strong competition.

Concentration Ratio

An economic indicator that measures the market share of the largest firms within an industry, used to assess competitiveness.