structure of integumentary system

Epidermis

Outermost layer of skin provides waterproof barrier and protects body from infection

Dermis

Middle layer of skin that contains blood vessels, nerves, hair, follicles, and sweat glands

Subcutaneous /Hypodermis

Innermost layer of skin that contains Fat and connective tissue

Protection

Skin protects body from Harmful substances. UV rays and excessive water loss by creating barrier from outside Petunes. Melanocytes produce, melanin that helps protect against ultraviolet radiation

Excretion

The sweat glands help reduce body temp by producing sweat that evaporates and cools the body Sweat contains trace amounts of lactic acid, urea, alcohol

To cool body off

Blood vessels in the skin dilate and sweat is produced too cool body off

to warm body up

Blood vessels in skin contract to maintain heat

What system regulates body temperature?

Integumentary system