Anatomy & SciencesQuestion 279 of 484
Which pair of changes in the dermis is most characteristic of intrinsic (chronological) skin aging?
a.Higher sebum output and more sweat glands
b.Increased collagen production and thicker elastin fibers
c.Reduced collagen synthesis along with fragmented, less elastic elastin
d.Faster melanin turnover and tighter capillaries
Explanation
With age, fibroblasts produce less collagen each year, while existing elastin fibers fragment and lose recoil. The combined loss is why aged skin appears thinner, looser, and slower to bounce back.
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