| Term 
 
        | What do the cancerous malignant melanoma (dangerous) cells do that may cause them to invade vital organs? |  | Definition 
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        | Term 
 
        | What does matastasis mean? |  | Definition 
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        | Term 
 
        | What is the continent most affected by the depletion of ozone about the South Pole (increased skin cancer)? |  | Definition 
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        | Term 
 
        | What helps convert inactive forms of vitamin D into the steroid cholecalferol or vitamin D2? |  | Definition 
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        | Term 
 
        | What does UV radiation help convert inactive forms of vitamin D into? |  | Definition 
 
        | the steroid cholecalferol or vitamin D3 |  | 
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        | Term 
 
        | What is the scientific name for vitamin D? |  | Definition 
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        | Term 
 
        | What does the liver do with the vitamin D3? |  | Definition 
 
        | it converts it to a product used by the kidneys to synthesize the hormone calcitrol which is essential for the normal absorption of calcium and phosphorus by the small intestine |  | 
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        | Term 
 
        | abnormal bone development (children living in areas with overcast skies and whose diet lacks choloclaciferol) |  | Definition 
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        | Term 
 
        | How has the US virtually eliminated rickets? |  | Definition 
 
        | by adding vitamin D to milk |  | 
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        | Term 
 
        | What do cultures that require women to be covered completely except for their eyes when they go outside exhibit a high incidence of problems with what area of their bodies? |  | Definition 
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        | Term 
 
        | What is the scientific name for bruise? |  | Definition 
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        | Term 
 
        | localized shedding of an epithelium |  | Definition 
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        | Term 
 
        | What is the scientific name for bedsores? |  | Definition 
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        | Term 
 
        | cell death and tissue distruction due to an adequate blood flow |  | Definition 
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        | Term 
 
        | What is the skin often referred to? |  | Definition 
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        | Term 
 
        | Why is the skin often referred to as a blood reservoir? |  | Definition 
 
        | the venous circulation of this area contains a substantial amount of blood |  | 
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        | Term 
 
        | About how many hairs does the human body have? |  | Definition 
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        | Term 
 
        | What percentage of hairs are not on the general body surface and not head? |  | Definition 
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        | Term 
 
        | Is hair living or nonliving? |  | Definition 
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        | Term 
 
        | What are sebaceous glands? |  | Definition 
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        | Term 
 
        | What are holocrine glands that discharge an oily lipid secretion into hair follicles? |  | Definition 
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        | Term 
 
        | What is the secretion of sebaceous glands called? |  | Definition 
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        | Term 
 
        | What is a mixture of triglycerides, cholesterol, proteins, and electrolytes? |  | Definition 
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        | Term 
 | Definition 
 
        | inhibits the growth of bacteria, lubricates and protects the keratin of the hair shaft, and conditions skin |  | 
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        | Term 
 
        | What are sudoriferous glands? |  | Definition 
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        | Term 
 
        | What many be apocrine or merocrine? |  | Definition 
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        | Term 
 
        | What kind of sweat glands are in armpits, around nipples, and in pubic region and secrete their products into hair follicles (odorous secretions, begin at puberty)? |  | Definition 
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        | Term 
 
        | What are the components of sweat? |  | Definition 
 
        | 99% water, but contains some electrolytes (mainly salt) |  | 
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        | Term 
 | Definition 
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