4.3: Skin Models

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Lumen Learning
Lumen Learning

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 Thin skin

 Thick skin

 Layers of the skin:

Epidermis
 Stratum corneum

 Stratum lucidum

 Stratum granulosum

 Stratum spinosum

 Stratum basale

Dermis
 Papillary layer

 Reticular layer

 Layers beneath the skin (subcutaneous)

Hypodermis
 Skin structures:

Dermal papillae
Hair follicle
 Root

 Shaft

 Hair follicle

 Papilla

 Arrector pilli (or piloerector m.)

 Bulb

Blood vessels
 Lamellar corpuscle
 Tactile corpuscle

 Eccrine (merocrine) sweat gland
 Pore

 Duct

 Apocrine sweat gland

 Sebaceous glands

Nail
 Eponychium

 Hyponychium

 Free edge

 Lateral nail fold

 Proximal nail fold

 Lunula

 Nail bed

 Nail plate (body)

 Nail matrix

 Skin cells:

Keratinocytes
Melanocytes
Fibroblasts
 Tissues types:
Stratified squamous epithelium
Areolar CT
Dense irregular CT
CT – adipose
Glandular epithelium (simple or stratified cuboidal)

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