When the Diaphragm and External Intercostal Muscles Contract

question 18

Multiple Choice

When the diaphragm and external intercostal muscles contract,

• A) the volume of the thorax increases.
• B) the volume of the thorax decreases.
• C) the volume of the lungs decreases.
• D) the lungs shrink.
• E) expiration occurs.

---

Definitions:

Monopolist

An individual or entity that has exclusive control over the supply of a particular good or service, potentially influencing prices and market conditions.

Duopoly

An oligopoly where only two firms dominate the market or industry, often resulting in competitive or strategic behavior.

Oligopoly

A market structure characterized by a small number of firms whose control over the market is significant enough to influence prices and other market factors.

Cournot Duopoly

A market structure where two firms compete with each other by choosing quantities to produce independently.