An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cross section of the epidermis demonstrating the epidermis (e) overlaying the dermis (d), and a hair follicle (hf) together with its sebaceous gland (sg). Original magnification, ×400.