When the Diaphragm Contracts, It

question 31

Multiple Choice

When the diaphragm contracts, it

• A) becomes flatter.
• B) opens a hole in its center through which air flows.
• C) becomes more dome-shaped.
• D) aids in expiration.

---

Definitions:

Pressure

The application of force upon the surface of objects or substances, or the feeling of stress or urgency caused by demanding circumstances.

Warmth

The quality of being kind, friendly, and affectionate in demeanor.

Cold

Typically refers to low temperatures; contextually, it can relate to a common viral infection affecting the nose and throat.

Pain

A distressing physical and emotional sensation linked to real or possible harm to the body, or expressed through the lens of such harm.