Stimulating the phrenic nerve:
is responsible for the pumping of 02 from the alveoli into the pulmonary capillaries
Is responsible for exhalation
Decreases thoracic volume
Causes the diaphragm to contract
The Correct Answer is D
A. is responsible for the pumping of O2 from the alveoli into the pulmonary capillaries: gas exchange occurs by diffusion, not nerve stimulation.
B. Is responsible for exhalation: exhalation is a passive process; phrenic nerve controls diaphragm contraction for inhalation.
C. Decreases thoracic volume: diaphragm contraction increases thoracic volume.
D. Causes the diaphragm to contract: the phrenic nerve innervates the diaphragm and stimulates its contraction for inhalation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Yearly chest x-rays- this detects disease but does not prevent it.
B. Don’t smoke or quit smoking- smoking is the most significant modifiable risk factor for COPD and lung cancer.
C. Daily exercise- while beneficial for overall health, it does not prevent lung disease as effectively as avoiding smoking.
D. Healthy diet- good nutrition supports health but is less specific for preventing lung diseases.
Correct Answer is D
Explanation
A. is responsible for the pumping of O2 from the alveoli into the pulmonary capillaries: gas exchange occurs by diffusion, not nerve stimulation.
B. Is responsible for exhalation: exhalation is a passive process; phrenic nerve controls diaphragm contraction for inhalation.
C. Decreases thoracic volume: diaphragm contraction increases thoracic volume.
D. Causes the diaphragm to contract: the phrenic nerve innervates the diaphragm and stimulates its contraction for inhalation.
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