The Integumentary System
Overview of the Integumentary System
The integumentary system (skin) is the largest and most superficial body system.
Microscopic cross-section of stratified squamous epithelial cells.
The integumentary system is mostly composed of stratified squamous epithelial cells.
The integumentary system also contains exocrine glandular epithelial cells, or sweat glands. These glands excrete sweat in order to cool the body and regulate body temperature.
Our First Line of Defense
The integumentary system is the first line of defense for the body. Without our protective outside covering, we would be more prone to infection, disease, and injury on the most important and delicate parts of our body.