These cells ingest pathogens and cellular debris:
Neutrophils.
Phagocytes.
Basophils.
Macrophages.
The Correct Answer is D
Choice A rationale:
Neutrophils are a type of white blood cell that can ingest pathogens, but they are not the primary cells responsible for this task.
Choice B rationale:
Phagocytes is a general term for cells that can ingest pathogens and cellular debris. Macrophages and neutrophils are types of phagocytes.
Choice C rationale:
Basophils are a type of white blood cell, but their primary role is not to ingest pathogens. They are involved in allergic reactions and inflammation.
Choice D rationale:
Macrophages are the primary cells that ingest pathogens and cellular debris. They are a type of phagocyte.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is Choice B.
Choice A rationale:
Nitrogen is the most abundant gas in the atmosphere, but it is not the primary regulator of respiration.
Choice B rationale:
Carbon dioxide (CO2) is the main chemical regulator of respiration and the potent stimulus of the respiratory centers via the arterial chemoreceptors and directly on the central chemoreceptors.
Choice C rationale:
Oxygen is essential for cellular respiration, but it is not the primary regulator of respiration.
Choice D rationale:
Bicarbonate plays a role in maintaining the pH balance in the blood and is not the primary regulator of respiration.
Correct Answer is A
Explanation
hoice A rationale:
Inspired gas passes through the convoluted air passages of the nasopharynx and pharynx which generates turbulence. This turbulence increases evaporative heat exchange between the air and the mucosa. The nasal mucosa is the lining of the nasal cavity. It moistens air that is coming into the body during inhalation.
Choice B rationale:
The sphenoid is a bone located within the skull and does not directly contribute to the heating and humidification of air.
Choice C rationale:
The nasopharynx is part of the pharynx, located above the soft palate. It serves as an air passage way connecting the nasal cavity to the throat and does not directly heat or humidify the air.
Choice D rationale:
The oropharynx is also part of the pharynx, located between the soft palate and the epiglottis. It serves as a passageway for both air and food but does not directly heat or humidify the air.
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