A medical researcher measured the diastolic wall thicknesses of the arteries in a young, healthy test subject. The test subject
came back 20 years later to have the measurements repeated. The measurements revealed that the subject's artery walls were half as thick as they were originally. Which of the following is the most likely long-term effect if the measured trend continues? a) Arteries and veins will fuse, causing oxygenated and deoxygenated blood to mix.
b) Arteries will be unable to withstand the pressure exerted by the heart, causing an aneurysm.
c) Blood volume will increase, causing the kidneys to work harder to maintain blood pressure.
d) Blood pressure will decrease, causing nausea, dizziness, loss of consciousness, and potential death.
<span>If the measurements of diastolic wall thickness decreased by half after 20 years and if the decrease will continue, it may result to:</span>
b) Arteries will be unable to withstand the pressure exerted by the heart, causing an aneurysm.
<span>An aneurysm<span> refers to a weakening of an artery wall that creates a bulge or a balloon of the artery that may rupture leading to death. Most of it </span>develops<span> after age 40 years old. </span></span>
The surface area of a sphere can be approximated as follows: Surface area = 4πr2; where r is the radius of the sphere; π is a constant that is roughly equal to 3.
