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35 Cards in this Set
- Front
- Back
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Tumor
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abnormal cell mass due to excessive cell multiplication
varies in size, shape and color one should have annual exams |
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Basal Cell CA
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Most common/least severe
(does not spread easily) light pearly nodules blood vessles may run through |
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Squamous Cell CA
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Most severe
spreads more easily pink red scaley papules or nodules open sores or crusty areas that don't heal and bleed easily |
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Malignant Melanoma
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Most serious
spread to internal organs often found on areas not exposed to sun... feet, toes, legs brown, black, or white uneven texture, jagged or raised |
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Clindamycin
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topical antibiotic
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Tazarotene (tazorac)
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Different than Ret-A
may be less irratating |
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Melanin Dendrites
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move cells to the skins surface
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What does the papilary layer create?
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epidermal/dermal junction
touch recept bld vessles capillaries |
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Lucidum
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clear keratin cells with epidermal rings on the feet and palms
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collagen
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fiboures connective tissue
located in reticular layer of the dermis creates firmness |
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What is the epidermis and name the layers
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thin protective outer most layer
Stratum corneum lucidum granulosum spinosum germenatevum |
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What 3 places in the skin do we absorb oxygen and chemical products
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foliclules
pores cells |
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What does sebum do?
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decreases evaoporation of water
fluxuates with stress hormones |
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What is the % dead skin cells in the epidermis?
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95%
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Approx how many days does it take for the cells to turn over.
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28 days
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Keratoma
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callius/corn
thick patch of epidermis due to pressure or friction |
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What are the 3 nerve fibers of the skin
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motor-brain to muscles
sensory- messages to the brain secretory-regulate sweat and sebum output |
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Germanativum
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"the growth layer"
cell mitosis ongoing merkel(sensory) cells here-touch receptors melanocytes |
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Acid Mantle
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sebum
H20 lipids sweat |
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5 nerve endings in the epidermis
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hot
cold pressure touch pain |
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How does melanin begin?
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melanocytes-
granules (melanosomes)- melanin |
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What is ground structure?
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fluid matrix in the dermis
holds water-hyaluronic acid -glycosaiminoglycan found between the fibers that aid in cell growth, migration and metabolism |
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ceramides
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nateral part of intracellular cement
important to barrier functrion because it hold water |
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glycolipids
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hydration, protection and nurishment
antigens responsible for cell function |
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What protects the epidermis?
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keratinocytes
epithelial cells intercellular cement(protects from water loss and irritation) |
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Sudoriferous Glands (2)
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Apocrine: attached to follicules under arms and genitals= order
Eccrine: all over the body and not connected to hair follicules= no order |
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Tyroninase
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enzyme involved in melanin production
inhibitor to stop the enzyme |
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What are the 2 types of melanin?
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pheomelanin-red/.yellow (light color)
eumelanin-dark (brown to black) |
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Reticular Layer
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collagen 70%
elastin 1/5th of collagen fibroblasts supplies skin with oxygen and nutrients blood |
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Spinosum
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cells change shape and divide
enzymes creating lipids and proteins= desmosomes help hold cells together contains immune cells |
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Granulosum
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"grainy cells"
cellular lipids and deratin are produced here |
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dermal papillae
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membranes of ridges and groves that attack the dermis to epidermis
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What do dermal papillae contain?
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looped capillaries that nurish
tactile corpusles sensitive to touch and pressure |
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Corneum
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horny layer-looks like hornes due to soft eratin (scale type cells)
kerinocytes harden and become corneocytes (protective cells) |
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What are the 6 skin functions?
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protection
heat regulation excretion secretion absorption sensation |
