Integumentary System

✨ Overview

The integumentary system is the body’s protective outer layer, consisting of the skin, hair, nails, and associated glands. It serves as the first line of defense against physical, chemical, and microbial threats, regulates temperature, supports sensory perception, and contributes to immune protection. This system also plays roles in hydration, vitamin D synthesis, and signaling through sensory and hormonal pathways, making it a vital interface between the body and the environment.