The Force That Causes Air to Move into the Lungs

question 67

Multiple Choice

The force that causes air to move into the lungs during inspiration is supplied by

• A) the diaphragm.
• B) the abdominal muscles.
• C) external intercostal muscles.
• D) atmospheric pressure.
• E) scalene muscles.

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Definitions:

Economies of Scale

The cost advantage that arises with increased output of a product, leading to a reduction in the per-unit cost.

Distribution Logistics

This focuses on the process of planning, implementing, and controlling the efficient flow and storage of goods from the point of origin to the point of consumption to meet customer requirements.

Economic Profit

A firm's total revenues minus its explicit and implicit costs, representing the profitability beyond the firm's opportunity costs.

Market Equilibrium

The condition where the quantity of a good or service demanded equals the quantity supplied, resulting in no incentive for price to change.