Structure and Functions of Skin – Notes

Integumentary System

The integumentary system is the largest is the largest organ system accounting for about 16% of the total body weight.

The integumentary system consists mainly of the skin and its soft derivatives like sweat glands, sebaceous glands and mammary derivatives like hair and nails.

The skin is made up of two layers – epidermis and dermis.

The epidermis consists of five sub – layers, namely stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum and tratum germinativum.

The dermis contain several structures like blood vessels, lymph capillaries fibres, nerves fibres, sebaceous or oil and sweat glands, and hair follicles.