The notch or depression where the bronchus, the blood vessels and the nerves enter the lung is the:
Hilum
Epiglottis
Nares
Conchae
The Correct Answer is A
A. The hilum is the region on the medial side of the lung where the bronchus, blood vessels, and nerves enter and exit the lung.
B. The epiglottis is a flap of tissue that covers the trachea during swallowing to prevent food from entering the airways, but it is not related to the entry of structures into the lung.
C. The nares are the nostrils through which air enters the respiratory system, not the area where the bronchus and vessels enter the lung.
D. The conchae (also known as turbinates) are structures inside the nasal cavity that help warm and humidify air, not related to the lung’s entry point.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Hypoxemia specifically refers to low levels of oxygen in the arterial blood, which can lead to tissue hypoxia if not corrected. It is often detected through arterial blood gas (ABG) analysis or pulse oximetry.
B. Excess oxygen in the blood is rare and may occur with supplemental oxygen therapy, but it is not the definition of hypoxemia.
C. Excess oxygen in the tissues is not a standard clinical term and does not relate to the condition known as hypoxemia.
D. Excess carbon dioxide in the blood is called hypercapnia, not hypoxemia.
Correct Answer is D
Explanation
A. The glottis refers to the opening between the vocal cords in the larynx and is not involved in the formation of the Adam's apple.
B. The hyoid bone is a U-shaped bone in the neck that supports the tongue and is not responsible for the Adam's apple.
C. The cricoid cartilage is a ring-shaped cartilage located just below the thyroid cartilage, but it does not form the Adam's apple.
D. The thyroid cartilage is the largest cartilage of the larynx and forms the prominent structure known as the Adam's apple. It is more prominent in males due to hormonal differences during puberty.
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