Histology lecture question 7 Test and Flashcards

Psoriasis is a skin disease that includes the rapid and excessive growth of keratinocytes. Why is this a problem, and how can symptoms such as redness and scaly skin be explained by the cause?

Protects skin through the process of proteins production; in addition, the top layer of skin made from keratinization is dehydrated, therefore if you had scaly skin and needed to apply a type of moisturizer, it would not penetrate the skin easily due to the building of keratinization.

How do you think the transit time of keratinocytes compares to those that do not have psoriasis (slower/faster)?

I believe it would be faster because there is no excess production of keratinization that would cause dry skin.

Why does skin have specialized immune cells?

Specialized immune cells are meant to protect the skin against disease and other pathogens.

As a person ages, their skin sags and gets wrinkles, and this is caused by the aging of which cells in the dermis?

Elastic fibers

Flashcards: Histology lecture question 7