The vessels that carry blood away from the heart are called?.
Sinusoids.
Veins.
Capillaries.
Arteries.
The Correct Answer is D
Choice A rationale:
Sinusoids are a type of capillary found in some organs, such as the liver, bone marrow, and spleen. They are not vessels that carry blood away from the heart.
Choice B rationale:
Veins are blood vessels that carry blood from the body back into the heart.
Choice C rationale:
Capillaries are delicate blood vessels that deliver blood, nutrients and oxygen to cells throughout the body. They do not carry blood away from the heart.
Choice D rationale:
Arteries are blood vessels that carry oxygenated blood away from the heart to the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is B
Explanation
hoice A rationale:
Only about 1.5% of oxygen is transported in the blood dissolved in plasma.
Choice B rationale:
The primary way oxygen is transported in the blood is in the form of oxyhemoglobin, which accounts for about 98.5% of oxygen transport.
Choice C rationale:
Oxygen is not primarily transported in the form of carbaminohemoglobin.
Choice D rationale:
Oxygen is not primarily transported in the form of bicarbonate.
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