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the study of the structure and composition of the skin tissue
skin histology
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the study of the functions of living organisms
physiology
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the skin is also refererred to as the:
integumentary system
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the skin is thickest on
palms of hands and soles of feet
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skin is thinnest on
eyelids
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healthy skin is:
- slightly moist
- soft
- smooth
- somewhat acidic
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skin on the average adult weighs _________ pounde and averages an area of ________ Square Feet
- 8-10 pounds
- 22 square feet
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each inch of skin contains approximately:
millions of _______
15 feet of ________
12 feet of ________
650 _______
100 __________
65 _________
1,300 _________
155 ________
12 ____________
- millions of cells
- 15 feet of blood vessels
- 12 feet of nerves
- 650 sweat glands
- 100 oil glands
- 65 hairs
- 1,300 nerve endings
- 155 pressure receptors
- 12 cold and heat receptors
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the six primary functions of skin are:
- protection
- sensation
- heat regulation
- excretion
- secretion
- absorption
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____________ on the epidermis gives protection from external factors
Sebum
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The ____________ is the protective barrier made up of sebum, lipids, sweat and water that form a hydrolipidic film
acid mantle
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The acid mantle has an average pH of _______
5.5
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The barrier function protects us from irritation and intercellular __________ (TEWL)
transepidermal water loss
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__________ are substances that contribute to the barrier function of the epidermis
Lipids
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_________ make up the intercellular cement between epidermal layers
Lipids
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_________ is the pigment that protects us from the sun
Melanin
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Sweat glands are also known as
Sudoriferous glands
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Oils are produced by the
Sebaceous Glands
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The epidermis is composed of 5 layers
- Stratum Corneum
- Stratum Lucidum
- Stratum Granulosum
- Stratum Spinosum
- Stratum Germinativum
"Col. Luke Gave the Seargent Germs"
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Stratum corneum aka:
the horny cells
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stratum lucidum aka
the clear cells
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stratum granulosum aka
the grainy cells
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stratum spinosum aka
the spiny cells
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stratum germinativum aka
the germination or growth layer
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the dermis consists of 2 layers
Papillary layer and reticular layer
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dermal papille is aka
finger prints
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below the reticular layer is the
subcutaneous layer
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The body produces 2 types of melanin __________ which is red/yellow in color and _________ which is dark brown to black in color
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_______ and _________ are the fluids that nourish the skin
Blood and Lymph
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cells need these important elements to survive:
- nourishment
- protection
- function
- proliferation
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free radicals are:
atoms or molecules with unpaired electrons
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UVA rays are the:
aging rays
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UVB rays are the:
burning rays
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Couperose or telangiectasia skin is a result of:
the dilation of the capillary walls
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