One of the two branches formed by the division of the trachea is:
Bronchiole
Hilum
Bronchus
Conchae
The Correct Answer is C
A. Bronchioles are smaller branches of the bronchial tree that come after the bronchi. They are not formed directly from the trachea.
B. The hilum is a region on the lung’s surface where structures like bronchi, blood vessels, and nerves enter or exit—but it is not a branch of the trachea.
C. The bronchus (plural: bronchi) is one of the two primary branches that the trachea divides into—right and left primary bronchi—which lead into each lung.
D. The conchae (or turbinates) are bony structures inside the nasal cavity that help filter and humidify air, but they are not related to the branching of the trachea.
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 A
Explanation
A. Carotid artery and aorta contain the carotid bodies and aortic bodies, which are peripheral chemoreceptors. These structures detect changes in blood oxygen, carbon dioxide, and pH levels, sending signals to the respiratory centers to adjust breathing accordingly.
B. The cerebellum and pons are parts of the brain involved in motor control and respiratory rhythm, respectively, but do not contain peripheral chemoreceptors.
C. The coronary sinus and alveoli are not involved in detecting chemical changes in the blood for breathing regulation. The coronary sinus drains blood from the heart muscle, and the alveoli are sites of gas exchange, not chemoreception.
D. The brachiocephalic vein and superior vena cava are large veins that return deoxygenated blood to the heart but do not house chemoreceptors involved in respiratory regulation.
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