Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
The skin is a large, complex _______ that protects the body. |
organ |
|
The skin combined with the hair, nails, and sweat and oil glands comprise the __________ ________, the study of which is called __________. |
Integumentary system; dermatology |
|
________ -layers of dead cells that contain ________ : a waterproofing and protective protein |
Epidermis ; keratin |
|
Physical Barrier – _________, a strong protein because of the disulfide bridges |
keratin |
|
What does perspiration do? |
provides water and nutrients for some microorganisms, but also contains salt and lysozyme; high in lactic acid contributing to the low pH |
|
How is Sebum made and what is the pH level? |
it is secreted by the sebaceous (oil) glands, has a low pH because of its high fatty acid content |
|
What are antimicrobial peptides in epithelial cells? |
positively charged molecules that disrupt the bacterial cell membranes (negatively charged) |
|
Where are mucous membranes located, what are the made of and what do they do? |
lining of body cavities; tightly packed epithelial cells attached to a membrane; many of these cells secrete mucus; often acidic; the eyes are mechanically washed by tears containing lysozyme; saliva – lysozyme |
|
small, fluid-filled lesions |
Vesicles |
|
larger vesicles; bubble |
Bullae |
|
flat, reddened lesions |
Macules |
|
combines macular and papular characteristics |
Maculopapular |
|
raised reddened lesions |
Papules |
|
if filled with pus |
Pustules |
|
Acne; severe acne = |
cystic acne |
|
____________ _____ produces _________ (and other enzymes) digesting the oils produced by the oil gland; also produces a protein that stimulates inflammation and neutrophils that are attracted to the site of infection produce enzymes that damage the wall of the hair follicle --> appearance of _______ and scarring |
Propionibacterium acnes produces lipases;
appearance of pustules and scarring |
|
What are the two types of treatments for acne and what is an example of one of them. |
Topical treatment such as Benzaclin and oral treatment |
|
Long term antibiotic use causes |
a high rate of antibiotic resistance in skin bacteria or in whole-body flora which pass to family members |
|
Oral contraceptives containing estrogen controversial because of the dangers of estrogen, such as... |
breast cancer; blood clots which increase strokes and heart disease |
|
Accutane (isotretinoin), a derivative of vitamin... |
A inhibits sebum formation may have severe side effects such as depression and birth defects |
|
Acne has _____________________________, but linked to endocrine factors, emotional stress, pressure on skin by leaning on hands, phone; often worse in spring and fall; cosmetics, especially oil-base irritate skin
|
no relationship to fats in diet |