Chapter 10 Milady's Esthetics

Phytoestrogens

Come from plants

Nicotine

Contracts blood vessels

Eumelanin

Dark brown to black in color

Lymph

Does not supply nutrients to the skin

Melanin production

Exposure to sunlight stimulates

90%

How much hard keratin does hair contain

Absorbtion

Is NOT a method by which the body maintains thermoregulation

Intercellular matrix

Is found between epidermal cells

Stratum granulosum

Is known as the grainy layer.

Langerhans immune cells

Protect the body from infection by identifying foreign materials

Acid mantle

Protective barrier made up of sebum lipids sweat and water.

Keratin fiber protein

Provides resiliency and protection to the skin

Pheomelanin

Red to yellow in color

Sebaceous glands

Secrete oil

Fibroblast

Stimulate cells

EGF epidermal growth factor

Stimulates cells to reproduce and heal

28 days

The average adult skin cell turnover rate is

Stratum germinitivum

The bottom layer of the epidermis

Arrector pili

The muscle that contracts when a person is cold causing goose bumps

Skin Histology

The study of the structure and composition of the skin tissue.

UVB

The type of ultraviolet radiation known as the burning ray

Pheomelanin and eumelanin

Two types of melanin

Slightly Acidic

A characteristic of healthy skin

Barrier function

A protective barrier of the epidermis , protects the surface from irritation and dehydration or TEWL ( trans epidermal water loss)

Sebum

An oily substance that protects the surface of the skin and lubricates both the skin and hair

Pore

An opening for a sweat gland

Proteins

Are the basic building blocks for body tissues.