Why Is the Gastroesophageal Sphincter Normally Closed

question 167

Multiple Choice

Why is the gastroesophageal sphincter normally closed?

• A)to prevent air from entering the esophagus during breathing
• B)to prevent gastric contents from refluxing into the esophagus
• C) to prevent vomiting
• D) to prevent esophageal secretions leaking into the stomach

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Definitions:

Fixed Cost

are business expenses that remain constant regardless of the level of production or sales, such as rent or salaries.

Depreciation

The process of allocating the cost of tangible assets over their useful lives, reflecting wear and tear or obsolescence.

Discount Rate

The interest rate used to discount future cash flows to their present value, reflecting the time value of money.