As Keratinocytes Move to the Surface

Question

As keratinocytes move to the surface
A) they become multinucleate
B) they divide to produce new skin cells
C) they eventually die and are sloughed off
D) All of the choices are correct.

Accepted Answer

Keratinocytes move to the surface of the skin, where they eventually die and are sloughed off, contributing to the protective barrier of the skin. They do not become multinucleate nor divide at the surface; their division occurs in the deeper layers of the epidermis.