Which statement accurately describes the bronchial tree?
There are two secondary bronchi in the sight lung and three in the loft lung.
The right primary bronchus is more vertical and wider than the left.
The carina is only present in the left primary branches.
Inhaled air does not enter the terminal bronchioles.
The Correct Answer is B
A. There are two secondary bronchi in the right lung and three in the left lung: There are three secondary bronchi in the right lung and two in the left lung due to the number of lobes in each lung.
B. The right primary bronchus is more vertical and wider than the left: The right bronchus is more vertical and wider, making foreign objects more likely to enter the right lung.
C. The carina is only present in the left primary branches: The carina is located at the bifurcation of the trachea into the right and left bronchi, not just in the left.
D. Inhaled air does not enter the terminal bronchioles: Inhaled air flows all the way through the bronchial tree, including the terminal bronchioles.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Lysozyme within tears destroy bacteria.: Lysozyme is an enzyme found in tears that helps to break down the cell walls of bacteria, acting as a chemical barrier and part of the innate immune system's first line of defense.
B. Chemotaxis attracts phagocytes to the site where the pathogen invaded.: This is part of the inflammatory response, which occurs after the first line of defense has been breached; therefore, it is not considered a first line of defense action.
C. Natural killer cells are the first lymphocytes to react to infection.: While natural killer cells play an essential role in the immune response, they are part of the second line of defense and respond after pathogens have entered the body.
D. Phagocytes ingest microbes when they enter the body.: This is part of the second line of defense, as phagocytes respond to pathogens that have breached the first line of defense, which includes physical and chemical barriers.
Correct Answer is A
Explanation
A. Urinary Bladder: The urinary bladder is composed of smooth muscle, including the detrusor muscle, which contracts to expel urine during urination. The detrusor muscle allows the bladder to stretch as it fills with urine and contract when it's time to empty.
B. Ureter: The ureters are muscular tubes that transport urine from the kidneys to the bladder but do not contain detrusor muscle. They have a different type of smooth muscle that aids in peristalsis.
C. Renal Artery: The renal artery is a blood vessel that supplies blood to the kidneys and does not contain muscle tissue like the detrusor muscle.
D. Kidney: The kidneys are organs that filter blood to produce urine but do not contain detrusor muscle. They consist mainly of nephron structures for filtration and reabsorption.
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