The Integumentary System

The outermost portion of the skin is composed entirely of epithelial cells and contains *no blood vessels*

This layer is consider to be the "true skin" it is well supplied with blood vessels and nerves. It has most of the skins accessory structures such as: sweat glands, oil glands, and hair.

This is the deepest layer of the dermis and is constantly dividing and producing *new dermal cells*

This is a protein that thickens and protects the skin.

This is a protective layer and is more prominent in thick skin than in thin skin. *The most thickened and keratinized layer. It is the uppermost layer of the epidermis.*

This is a process of the cells constantly being lost and replaced from below. *This process gets rid of accumulated environmental toxins and microbes*

These are extensions of patterns and ridges individualized through heredity that can be seen on the surface of the skin. Helps prevents objects from slipping. *There are also known as fingerprints or footprints*

These are sac-like structures that produce an oily secretion. *They open into the hair follicles*

This is an oily secretion that lubricates the skin and prevents hair from drying.

Babies are born covered with a cream cheese like substance that is produced by the sebaceous glands.

These glands produce sweat. *Function to cool the body and release sweat or perspiration that draw heat from the skin as the moisture evaporates*

This type of sudoriferous glands are found only in the armpit or axillary.

This is a type of sudoriferous glands are found in the ear canal and it produces wax.

These glands are at the edges of the eyelids.

These glands are found in the breast.