Histology of the Skin
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Created by:
MaxwellCosmetology on January 5, 2012
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80 terms
Terms | Definitions |
|---|---|
 Dermatology | the study of the skin and its nature, structure, functions, diseases and treatment |
| Esthetician | a specialist in the cleansing, preservation of health, and beautification of the skin and body |
| Healthy skin is | slightly acid |
| The skin is thinnest on | the eyelids |
| The palms and soles is where the skin is | the thickest |
| Epidermis | the outer protective layer of the skin |
| The epidermis does not contain | any blood vessels |
| Stratum corneum has scale-like cells made up of | keratin |
| Stratum corneum | the layer of the epidermis that is continually being shed and replaced |
| The stratum corneum is also known as | the horny layer |
| Stratum germinativum | where the growth of the epidermis begins |
| Melanin, which protects sensitive cells from the destructive effects of excessive UV rays, is found in | the stratum germinativum |
| Nerves, hair follicles, papillae, and sweat and oil glands are found in | the dermis, the underlying or inner layer of the skin |
| The reticular and papillary layers are also found in | the true skin (the dermis) |
| The small cone-shaped elevations at the bottom of the hair follicles | are papillae |
| The reticular layer | the layer of the dermis that supplies the skin with oxygen |
| Subcutaneous tissue | is a fatty tissue |
| The skin is nourished by | blood and lymph |
| Sensory nerve fibers in the skin | react to cold |
| The motor nerve fibers of the skin | cause goose bumps |
| The skin gets its strength, form and flexibility from | collagen and elastin |
| A protein fiber that helps the skin regain its shape, even after being repeatedly stretched, is | elastin |
| The sudoriferous glands regulate | body temperature |
| Sebaceous glands are found on all parts of the body except | the palms and soles |
| Sweat pores | the small opening of the sweat glands on the skin |
| The excretion of sweat from the skin is under the control of | the nervous system |
| The palms, soles, forehead, and armpits contain particularly numerous | sudoriferous glands |
| The sebaceous glands | secrete oil |
| The duct of the sebaceous gland opens into the | hair follicle |
| The function of sebum is to lubricate | the skin |
| The blood and sweat glands of the skin regulate body heat by maintaining a Fahrenheit temperature of about | 98 degrees |
| Approximately ___________ of the skin's aging is caused by the sun's rays | 80 to 85 percent |
| Skin tissues wrinkle and sag because of the weakening of | the collagen and elastin fibers |
| The ultrviolet rays of the sun that are also called the "aging rays" are the | UVA rays |
| The "burning rays" that can damage the skin and eyes are | UVB rays |
| Ultraviolet exposure is highest between the hours of | 10 A.M. and 3 P.M. |
| UVB rays cause tanning of the skin by affecting | the melanocytes |
| Nicotine in tobacco causes contraction and weakening of the | blood vessels |
| An excessive intake of alcohol | overdilates blood vessels |
| If a client has an inflamed skin disorder that is not infectious, you should | refer the client to a physician |
| A papule is | a primary lesion of the skin |
| Pus is most likely to be found | in pustules |
| Poison oak and poison ivy produce | vesicles |
| Fissures | the skin lesions found in chapped lips and hands |
| Cyst | a closed, abnormally developed sac containing fluid, semi fluid and morbid matter |
| Cicatrix | after an injury, this might develop |
| Tumor | an abnormal mass |
| Before a wound or blemish has healed completely, it is likely to be | covered with a crust |
| Dandruff | an example of scale |
| Comedone | technical term for blackhead |
| Milia | the technical name for whiteheads |
| Disorders of the sebaceous glands do not include | miliaria rubra |
| Acne, or common pimples, is also known as | acne simplex or acne vulgaris |
| Rosacea | a chronic congestion on the cheeks and nose characterized by dilation of blood vessels |
| One of the symptoms of asteatosis | dry skin |
| In seborrhea, the appearance of the the skin is | oily and shiny |
| Steatomas usually appear | on the scalp |
| Bromhidrosis means | foul-smelling perspiration |
| Hyperhidrosis | excessive sweating |
| Miliaria rubra | people exposed to excessive heat may develop this condition |
| Eczema | an inflammation of the skin characterized by dry or moist lesions |
| Psoriasis | indicated by red patches covered with silver-white scales |
| Herpes simplex | a recurring viral infection |
| Dermatitis venenata | certain chemical found in cosmetics may cause this |
| Freckles | the common term for lentigines |
| Albinism is characterized by | an absence of melanin |
| Liver spots are technically known as | chloasma |
| Leukoderma | the skin disorder that is further classified as vitiligo and albinism |
| Stain | an abnormal skin discoloration that occurs during aging or after certain diseases |
| Nevus | a birthmark |
| Continued pressure or friction on the hands and feet may result in the formation of | a keratoma |
| Skin tag | hypertrophy that occurs most often on the neck of an older person |
| Verruca | a hypertrophy that is caused by a virus and is infectious |
| Basal cell carcinoma | the most common and least severe type of skin cancer |
| Malignant melanoma | a skin cancer characterized by black or dark brown patches on the skin that may be uneven in texture, jagged, or raised |
| Squamous cell carcinoma | a skin cancer characterized by scaly red papules or nodules |
| Vitamin C | the vitamin that promotes the production of collagen in the skin |
| Vitamin A | Retinoic acid or Retin-A is the topical form of this vitamin |
| Vitamin E | When used with vitamin A, this vitamin helps protect the skin from the harmful effects of the sun's rays |
| Water composes ___________ percent of the body's weight | 50 to 70 |
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