Question

Aortic blowout occurs when part of the wall of the aorta becomes weakened. What does this cause? (a) A bulge and increased radius of the aorta when the blood pressure inside increases (b) An increased radius of the aorta, which causes increased tension in the wall (c) An increased tension in the aorta, which causes the radius to increase (d) a and b (e) $a, b,$ and $c$

Name: Problem 77, Chapter 12: College Physics Explore and Apply
Uploaded: 2020-10-19T10:24:27-08:00
Duration: 33 s
Channel: Zulfiqar Ali
Description: Aortic blowout occurs when part of the wall of the aorta becomes weakened. What does this cause? (a) A bulge and increased radius of the aorta when the blood pressure inside increases (b) An increased radius of the aorta, which causes increased tension in the wall (c) An increased tension in the aorta, which causes the radius to increase (d) a and b (e) a, b, and c

   Aortic blowout occurs when part of the wall of the aorta becomes weakened. What does this cause?
(a) A bulge and increased radius of the aorta when the blood pressure inside increases
(b) An increased radius of the aorta, which causes increased tension in
the wall
(c) An increased tension in the aorta, which causes the radius to increase
(d) a and b
(e) $a, b,$ and $c$

College Physics Explore and Apply

Eugenia Etkina; Alan… 2nd Edition

Chapter 12, Problem 77

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Solved by Expert Zulfiqar Ali

10/19/2020

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This weakening can lead to several effects. Show more…

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Aortic blowout occurs when part of the wall of the aorta becomes weakened. What does this cause? (a) A bulge and increased radius of the aorta when the blood pressure inside increases (b) An increased radius of the aorta, which causes increased tension in the wall (c) An increased tension in the aorta, which causes the radius to increase (d) a and b (e) $a, b,$ and $c$

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Key Concepts

Aortic Aneurysm

This is a condition where a section of the aorta becomes weakened and bulges outward. The dilation involves an increase in the vessel’s radius, which can raise the risk of rupture, reflecting the process described as a 'blowout' when the wall can no longer withstand normal blood pressure.

Aortic Wall Biomechanics

This concept involves the physical properties of the aortic wall, such as elasticity and tensile strength. When a portion of the wall is weakened, it alters the normal mechanical behavior of the vessel, often leading to a dilation or aneurysm due to the inability to resist intraluminal blood pressure.

Laplace's Law

A principle that relates the tension in the wall of a vessel to its internal pressure and radius. It explains why an increase in the aortic radius, as seen in aneurysm formation, results in higher wall tension, which can further exacerbate the dilation or lead to rupture if the wall is weak.

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