INTEGUMENTARY (SKIN, HAIR, NAILS
By: Miracle Wiggins
This most extensive organ system has the skin and accessory structures, including hair, nails, glands (sweat and sebaceous), and specialized nerve receptors for stimuli (changes in internal or external environment) such as touch, cold, heat, pain, and pressure. Its functions include protection of internal structures, prevention of entry of disease-causing microorganisms, temperature regulation, excretion through perspiration, pigmentary protection against ultraviolet sunrays, and production of vitamin D. The body stores about half its fat in the underlying hypodermis.
Diseases in the Integumentary System
Diseases of the integumentary system. Dermatologists specialize in treating diseases, disorders and injuries of the skin, hair and nails. They treat common conditions such as acne and warts; chronic skin conditions such as eczema and psoriasis; and more serious diseases like skin cancer, according to the AAD.
Five Facts about the Integumentary System
- You have 7 layers of flat, stacked cells.
- The average amount of head hair is 120,000.
- Your eyelids have the thinnest skin.
- Hair grows 1cm per month.
- An adult has 20 sq.ft of skin.