Question

Which one of the following principles helps to explain the flow of blood in an artery?

• A. Magnus effect
• B. Boyle's law
• C. Pascal's law
• D. Bernoulli's principle
• E. Archimedes' principle

Hint:

Bernoulli’s principle is key in understanding the relationship between blood velocity and pressure in arteries.

Answer 1

The Correct Option is D

Bernoulli’s principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. This principle is fundamental in explaining the flow of blood in arteries because it accounts for how changes in the speed of blood flow can create changes in blood pressure. - Magnus effect (A): This effect is observed when a rotating body moves through a fluid, causing a change in the fluid's velocity. It is related to spinning objects but not directly relevant to blood flow in arteries. - Boyle's law (B): Boyle’s law describes the inverse relationship between pressure and volume for a fixed amount of gas. It does not explain blood flow. - Pascal's law (C): Pascal’s law deals with the pressure exerted by a fluid in a confined space and is not as relevant to blood flow through open arteries. - Archimedes' principle (E): Archimedes' principle is related to the buoyant force on an object submerged in a fluid and does not explain the flow of blood. Thus, the correct answer is (D) Bernoulli’s principle as it helps explain how changes in blood velocity influence pressure within the arteries.