chapter 4 test
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| 5 functions of skin | show 🗑
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| compare & contrast thick & thin skin | show 🗑
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| The most common type of cell in the epidermis is ___. | show 🗑
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| show | basale - deepest layer
spinosum - contains thick layer of pre-keratin
granulosum - cytoplasm
lucidum - hairless; only in thick skin
corneum - outermost layer of epidermis; dead cells
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| What is melanin, what type of cells make melanin, where is melanin mostly found, and what affects the amount of melanin a person has? | show 🗑
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| show | 1. dendritic - alert and activate immune cells to a threat
2. merkel - serve as touch receptors
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| show | 1. papillary layer - upper dermal region; some contain capillary loops
2. reticular layers - blood vessels; sweat glands
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| show | Sebaceous glands = oil glands. The sebum helps the body by lubricating the skin and killing bacteria.
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| What are sudoriferous glands? Name 2 types of these glands. | show 🗑
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| Explain how a body can produce odor from sweating if sweat has no odor. | show 🗑
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| What are the “Rules of Nines” used for? Explain. | show 🗑
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| show | 1.first-degree burns
only epidermis is damaged
2. second-degree burns
epidermis and upper dermis are changed
3. third-degree burns
destroys entire skin layer; burned area is painless
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| Under what circumstances are burns considered to be critical? | show 🗑
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| Describe infections and allergies that can affect the skin. (matching) | show 🗑
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| Describe the 2 ways cancer can be classified. | show 🗑
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| Describe infections and allergies that can affect the skin. (matching) | show 🗑
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| show | - benign
does not spread
- malignant
moves to other parts of the body
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| show | 1. Basal cell carcinoma
least malignant
most common
2. Squamous cell carcinoma
early removal allows a good chance of cure
believed to be sun-induced
3. Malignant melanoma
most deadly
uses ABCD rule
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| show | A = Asymmetry
Two sides of pigmented mole do not match
B = Border irregularity
Borders of mole are not smooth
C = Color
Different colors in pigmented area
D = Diameter
Spot is larger than 6 mm in diameter
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| show | keratin
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