The skin allows our temperature to remain at a steady state using blood flow and sweat.
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Regulation
Skin lets us relate to our
environment though this function
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Sensation to external stimuli
Removal of salts, water & wastes
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Excretion
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Skin covers the body, keeps bacteria out & organs safe
Protection
The dermis is composed of…
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Irregular dense tissue
The epidermis is made up of these types of cells
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Stratified Squamous Epithelium
The bottom most layer is technically not skin and is called
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hypodermis
The lower layer of the skin is called
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Dermis
The outer layer of the skin is called
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epidermis
The big reason that we evolved to sweat was for this function
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Reduce temperature
Glands are found in this layer of the skin
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Dermis
Ceruminous glands produce what for the body?
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Ear wax
Sudorierous (sweat) glands, come in twoTypes. Name them both
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eccrine & apocrine
This gland is commonly called an oil gland &Prevents brittle hair, water loss from skin &Some bacterial growth.
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Sebaceous
Once thought to be the reason that peopleNear the equator developed darker skin, it is now thought that this disease was not As critical to the evolution of skin color.
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Skin Cancer
UV rays from light are necessary for normal growth because it allows us to synthesize (make) what?
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Vitamin D
The darker skin protects against the break down of what substance important to the growth of the fetus
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Foliate or folic acid or vitamin B
The pigment that makes skin darker is called
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melanin
The cell that produces the pigment that colors our skin & hair are called
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melanocytes
Hair has 3 main parts. Name them all.
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Cuticle, cortex, medulla
What type of cell gives hair its color?
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Melanocytes
The function of the nail is to:
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Support the bone underneath & make it easier to grab objects
Nails form from what type of cell
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epithelial (keratinized)
A tough protein substance that makes skin hard
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keratin
What would eventually happen to
your skin if it had constant pressure
Applied & why?
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The skin would die because it would not be able to get the nutrients through the compressed capillaries
What is the deepest layer affected if it is a 4th degree burn?
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Muscle & possibly bone
What is the deepest layer of the skin that is affected in a 3rd degree burn?
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hypodermis
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dermis
What is the deepest layer of the skin
that is affected in a 2nd degree burn?
What layer of the skin is effected in 1st degree burns?
The epidermis
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If the irregular dense tissue is stretched beyond it’s ability it tears and this is commonly called