3 parts

 

skin

 

hair

 

nails

 

Functions

 

Epidermis

 

5 different classes of cells

 

Stem cells

 

Keratinocytes

 

Melanocytes

 

2 classes

 

Merkle cells

 

Langerhans cells

 

2 different classes of skin

 

5 layers of the epidermis

 

Dermis

 

2 layers

 

Dermal papilla

 

Cleavage lines

 

Hypodermis

Functions

 

Skin Colors

 

Erythroderma

 

Zanthoderma

 

jaundice

 

Melanoderma

 

Cyanoderma

 

Cyanosis

 

Hematoma- bruise

 

Accessory Structures to Skin

 

Hair

 

Shaft

 

Root

 

3 parts to hair

 

Hair bulb

 

Hair growth phases

 

Hair color

 

Amounts of melanin

 

Arrector pili muscle

 

Driven by