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Adipose

fat Tissue

Arrector Pili

muscle that surrounds each hair follicle; contraction may cause goose bumps

Dermis

middle or inner layer of the skin

Epidermis

the outer layer of the skin covering the exterior body surface of vertebrates

Keratin

protein that makes skin waterproof and keeps it strong

Sebaceous Gland

oil gland, in the skin, into hair follicles

Stratum

the singular form

Subcutaneous Tissue

connective and adipose tissue layer just under the dermis

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