The neck and abdominal muscles are involved in a:
Quiet inspiration
Forceful exhalation
None of the answers are correct
Quiet exhalation
The Correct Answer is B
A. Quiet inspiration involves the diaphragm and external intercostal muscles without significant involvement of the neck and abdominal muscles.
B. Forceful exhalation (such as during coughing or strenuous activities) engages the abdominal muscles and sometimes the neck muscles (such as the sternocleidomastoid), as they help to push air out of the lungs by increasing intra-abdominal and intrathoracic pressure.
C. None of the answers are correct is incorrect because forceful exhalation involves these muscles.
D. Quiet exhalation primarily relies on passive recoil of the lungs and relaxation of the diaphragm, with minimal involvement of the neck or abdominal muscles.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Esophagus passes through the mediastinum and lies posterior to the trachea and heart.
B. Lungs are not part of the mediastinum; they are located in the pleural cavities on either side of the mediastinum.
C. Heart is located centrally within the mediastinum, specifically in the middle mediastinum.
D. Lymph nodes are present in the mediastinum and are part of the immune and lymphatic systems
Correct Answer is B
Explanation
A. Capillaries are small blood vessels that are involved in the exchange of gases but are not part of the bronchial tree.
B. The bronchiole is the smallest division of the bronchial tree. It is a narrow airway that connects the larger bronchi to the alveoli, where gas exchange occurs.
C. Arterioles are small blood vessels that are part of the circulatory system, not the respiratory system.
D. The alveoli are the small air sacs at the end of the bronchioles where gas exchange occurs, but they are not the smallest subdivision of the bronchial tree—this is the bronchiole itself.
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