Which of the Following Is a Function of a Valve

question 48

Multiple Choice

Which of the following is a function of a valve?

• A) regulates the direction of the flow of blood through the heart
• B) regulates the amount of oxygen bound to hemoglobin
• C) regulates heart rate
• D) directs the movement of the cardiac impulse

---

Definitions:

Minerals

Inorganic substances required by the body in small amounts for a variety of functions, including bone formation and enzyme activity.

Nutritional Substances

Elements found in food that are essential for the growth, development, and maintenance of the body; includes vitamins, minerals, proteins, fats, and carbohydrates.

Elements

The basic substances that constitute all matter, each with its own distinct properties, which cannot be broken down into simpler substances by chemical means.

Sodium

A chemical element (Na) that is essential for the body in small amounts but can lead to high blood pressure and other health issues when consumed in excess.