The repetitive process of exhaling is called?.
Expiration.
Respiration.
Inhalation.
Inspiration.
The Correct Answer is A
Choice A rationale:
Expiration, also known as exhalation, is the process of air leaving the lungs.
Choice B rationale:
Respiration is a broader term that includes both the inhalation and exhalation processes.
Choice C rationale:
Inhalation is the process of drawing air into the lungs, not exhaling.
Choice D rationale:
Inspiration is another term for inhalation, not exhalation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Veins do not always carry deoxygenated blood. The pulmonary veins are an exception as they carry oxygenated blood from the lungs to the heart.
Choice B rationale:
Veins do not carry blood away from the heart. They carry blood back toward the heart.
Choice C rationale:
Veins do not have a thick tunica media. The tunica media is thinner in veins than in arteries.
Choice D rationale:
Veins have valves. This is a true statement. The valves in veins prevent blood from flowing backward.
Correct Answer is A
Explanation
Choice A rationale:
Diffusion is the primary mechanism for capillary exchange. It allows small molecules, such as gases, lipids, and lipid-soluble molecules, to move directly through the membranes of the endothelial cells of the capillary wall.
Choice B rationale:
Filtration is a pressure-driven mechanism that moves volumes of fluid from an area of higher pressure in a capillary bed to an area of lower pressure in the tissues. However, it is not the primary mechanism for capillary exchange.
Choice C rationale:
Gravity does not play a direct role in capillary exchange.
Choice D rationale:
Colloid osmotic pressure is a type of pressure that interacts with hydrostatic pressure to drive fluid movement in capillaries. However, it is not the primary mechanism for capillary exchange.
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