This nerve stimulates the diaphragm.
Phrenic nerve
Optic nerve
Intercostal nerve
Sciatic nerve
The Correct Answer is A
A. Phrenic nerve: Correct; it controls diaphragm contraction, enabling breathing.
B. Optic nerve: Responsible for vision, not respiration.
C. Intercostal nerve: Controls intercostal muscles, but not the diaphragm.
D. Sciatic nerve: Largest nerve in the leg; unrelated to respiration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Bronchial tree: The bronchial tree refers to the entire system of airways including the trachea, bronchi, and bronchioles.
B. Bronchioles: Bronchioles are smaller airways that arise from bronchi and do not contain cartilage. They are located further down the respiratory pathway, closer to labels #5 or #6.
C. Alveoli: Alveoli are the tiny air sacs at the very end of the respiratory tract where gas exchange occurs. They are shown at label #7, not #3.
D. Bronchi: Bronchi are the major air passages that branch off from the trachea. Label #3 is pointing to a structure at this level-larger than bronchioles but smaller than the trachea. It is one of the primary or secondary bronchi.
Correct Answer is ["A","C","D"]
Explanation
A. Trachea: The trachea is the beginning of the lower respiratory tract and conducts air to the bronchi.
B. Pharynx: The pharynx is part of the upper respiratory system.
C. Lungs: The lungs are the primary organs of the lower respiratory tract responsible for gas exchange.
D. Bronchial tree: The bronchial tree, including bronchi and bronchioles, is part of the lower respiratory system.
E. Larynx: The larynx is the uppermost structure of the lower respiratory system in some classifications but is more commonly considered part of the upper respiratory tract.
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