Introduction to the Integumentary System -- Animated Tutorial | Complete Anatomy

The integumentary system also known as the dermal system

is the largest system in the human body.

It consists of structures that form the

body's outer covering. And its functions include

protection against the external environment;

regulation of body temperature;

regulation of hydration levels;

sensory perception of touch, temperature, and pain; and synthesis of vitamin D.

The major components of the integumentary system

are the skin and the subcutaneous tissue.

The skin consists of two layers:

the epidermis, which is a superficial cellular layer of the skin, and

the dermis, which is a deep connective tissue layer of the skin.

The subcutaneous tissue also known as a

superficial fascia or hypodermis is the connective tissue

layer located immediately deep to the dermis consisting of adipose tissue or fat.