Expiration (Exhalation) Occurs When ________

question 36

Multiple Choice

Expiration (exhalation) occurs when ________.

• A) the diaphragm and intercostal muscles contract
• B) air moves into the lungs
• C) intrapulmonary volume increases
• D) the diaphragm and intercostal muscles relax
• E) intrapulmonary pressure decreases

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Definitions:

Somatic

Relating to or affecting the body, especially as distinct from the mind or psyche.

Sympathetic

Pertaining to the sympathetic nervous system, which activates the body’s fight or flight response under stress.

Parasympathetic

A division of the autonomic nervous system responsible for conserving energy and bringing the body to a state of rest.

Gray Matter

The part of the brain that contains most of the brain's neuronal cell bodies and is involved in sensory perception, emotion, speech, decision making, and self-control.