Answered: Which student's explanations of the…

Name: Louis, Janine, Lamar, and Veronica are conducting a physiology lab exp
Uploaded: 2024-03-20T06:56:46.000Z
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Description: Louis, Janine, Lamar, and Veronica are conducting a physiology lab experiment where the following question is posed: "Consider a patient visiting a cardiovascular surgeon's office. The surgeon is trying to explain to the patient that he is at high ri

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Louis, Janine, Lamar, and Veronica are conducting a physiology lab experiment where the following question is posed: "Consider a patient visiting a cardiovascular surgeon's office. The surgeon is trying to explain to the patient that he is at high risk for a brain aneurysm (when a blood vessel in the brain "balloons" and eventually bursts). Write down a physical explanation for the cause of a brain aneurysm that the surgeon could use to explain this to the patient." The students write the following responses: Louis: "The blood vessels in the brain are at a higher elevation than the heart and other areas of the body, which means they are subject to greater blood pressure due to the gravitational potential energy stored as well. This increases pressure pushes out on the brain's blood vessels and can cause them to balloon over time." Janine: "When a blood vessel has plaque buildup, the fluid doesn't have as much space to move through, so it must move more quickly. This causes an increase in pressure in the vessel, causing it to balloon outward. This causes even more plaque buildup, and the process repeats itself over time." Lamar: "When a blood vessel's wall is weakened, sometimes due to smoking, high blood pressure, or genetics, the blood pressure inside the blood vessel can push outward, causing the vessel to expand. This expansion causes lower blood flow speeds, which increases blood pressure in the region, which makes the vessel expand more, and the process repeats itself over time." Veronica: "Blood vessels in the brain have less pressure on the outside of them because there are fewer muscles and other tissue surrounding them. This means there is not as much resistance to the internal blood pressure, allowing the blood to cause the vessels to balloon outward over time. As people age, this lack of resistance from other tissue in the brain increases because brain tissue decreases with age, meaning the aneurysms can get larger and more severe with age." Which student's explanations of the cause of an aneurysm is most physically accurate?

a. Veronica

b. Louis

c. Lamar

d. Janine

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