Question

multiple choice question
what age - related change occurs in arteries?
o tunica externa thickens.
o tunica media thickens.
o tunica interna thickens.
o tunica media thins.

Explanation:

With aging, the tunica intima of arteries thickens due to factors like accumulation of extracellular matrix components and smooth - muscle cell proliferation. The tunica externa and media do not typically show the pattern described in the other options as a main age - related change.

Answer:

Tunica interna thickens.