Layers of the Skin -HBS Turano

stratum spinosum (prickly layer)

Many layers of keratinocytes attached by desomomes

stratum granulosum (granular layer)

-thin; three to five cell layers in which cells flatten

-keratohyaline and lamellated granules accumulate

stratum lucidum (clear layer)

Thin layer, of cells superficial to the stratum granulosum

stratum corneum (horny layer)

-20-30 rows of dead, flat, keratinized membranous sacs

Melanocytes

Stratum basale, produces melanin

Thick skin

Contains 5 layers; soles of feet, palms of hands,

Thin skin

Covers most of the body, hair follicles, sebaceous glands and sweat glands

integument functions

Protection, barrier, preventing water gain/loss, regulation temperature, aiding metabolism,

kertain

tough water-repellent protein found in the epidermal cells

subcutaneous layer

connective and adipose tissue layer just under the dermis

arrector pili

tiny muscle that attaches to the hair follicle

tactile cells (merkel cells)

touch sensations

Come, Let's Get Sun Burned

Corneum,

Lucidum,

Granulosum,

Spinosum,

Basale