Ch6SkinAndGlands.txt

The five layers of the epidermis from outside in.

The three layers that make up the skin.

Outer layer of skin composed of stratified squamous epithelium and contains no blood vessels.

Inner layer of skin, thicker than epidermis, composed of connective tissue smooth muscle tissue, nerve tissue, and blood.

Hypodermis, made up of tissues that bind the skin to the underlying organs.

The outermost layer of epidermis. Sheds its dead epithelial cells.

Layer of epidermis where cells appear clear and cell parts invisible. Make up thick skin of palms and soles.

Layer of epidermis made of 3 to 5 layers of flattened granular cells containing shrunken keratin and shriveled nuclei.

Layer of epidermis made of many layers of cells with large oval nuclei and developing keratin fibers becoming flattened.

Deepest layer of the epidermis with single layer of cells that divide and grow by getting nutrition from neighboring dermis. Stratum Germinativum.

The thickening and hardening of older cells. Keratin proteins are synthesized and stored in the cell.

Skin darkening pigment made from amino acid tyrosine in organelles called melanosomes. Provides skin color and protects the body by absorbing UV radiation.

Specialized skin cells in the stratum basale layer of the epidermis that produce melanin.

Keeps hair soft, pliable, and waterproof.

Lower body temperature with odorless secretions.

Wet skin during pain, fear, emotional distress, and sexual arousal. Not odorless.

Secrete earwax.

Secrete milk.