Blood vessels show which sign of aging?
A)Elastin fibers in their walls are replaced by collagen or calcium deposits.
B)The muscles become softer and expand more easily.
C)The smooth muscle layer constricts more readily.
D)Elastin fibers double in quantity.
E)The veins develop more valves.

Question

Blood vessels show which sign of aging? ​
A)Elastin fibers in their walls are replaced by collagen or calcium deposits.
B)The muscles become softer and expand more easily.
C)The smooth muscle layer constricts more readily.
D)Elastin fibers double in quantity.
E)The veins develop more valves.

Quizplus · Accepted Answer

Elastin fibers in the blood vessel walls are replaced by collagen or calcium deposits, which leads to decreased flexibility and increased stiffness in the vessels. This process is a key characteristic of aging and can result in a variety of health issues, including hypertension, heart disease, and stroke.

Blood Vessels Show Which Sign of Aging? ​

Blood Vessels Show Which Sign of Aging?