Answered

Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Ask your questions and receive detailed answers from professionals with extensive experience in various fields. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

As blood flows away from the heart, how does overall blood pressure in vessels change? Why?

a. Blood pressure decreases because blood vessels are passive and cannot exert any force on the moving blood.

b. Blood pressure increases because vessel diameter narrows with distance from the heart, which increases the force on the blood.

c. Blood pressure increases. Otherwise, the blood would not flow up toward the heart.

d. Blood pressure decreases because of the effects of friction between the vessel walls and the moving blood.

Sagot :

jannanikannan

Answer:

The correct answer is option d

Explanation:

because blood pressure decreases as blood moves away from the heart, which is why the heart needs to generate enough pressure so that blood can return to the heart. The pressure drops due to friction between the vessel's walls and the moving blood which exerts a force opposite to the flow of blood, thereby slowing it down. Option a is incorrect because some blood vessels like elastic arteries are not passive and can actually exert a force on the moving blood to help maintain pressure, nevertheless, the blood pressure does decrease due to frictional forces exerted by the vessel walls. Options b and c are incorrect because blood pressure decreases once it leaves the heart.

We hope our answers were helpful. Return anytime for more information and answers to any other questions you may have. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.