Skin Sciences Flashcards

1
Q

Why is UVB radiation also known as burning rays?

A

UVB wavelengths cause burning of the skin as well as cancer.

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2
Q

What is NOt an element if the skin’s acid mantle?

A

blood

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3
Q

What causes injured skin to restore itself to its normal thickness?

A

hyperproduction of cells

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4
Q

What are the items in the dermis that respond to touch, pain, cold, heat, and pressure?

A

sensory and nerve endings

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5
Q

What are most abundant in the fingertips, oppsed to other parts of the body?

A

sensory nerve fibers

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6
Q

What is the average internal temperature of the body in degrees Fahrenheit?

A

98.6

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7
Q

What are follicles?

A

Tubelike openings in the epidermis

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8
Q

What is not a compound in the body in which free radicals take electrons?

A

sebum

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9
Q

What is glycation?

A

binding of a protein molecule to a glucose molecule

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10
Q

Cone-shaped elevations at the base of a follicle?

A

hair papillae

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11
Q

Where in the body is hyaluronic acid found?

A

skin

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12
Q

What is hydrolipidic film?

A

oil- water balance that protects the skin’s surface

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13
Q

What is a fiber protein foud in skin, hair, and nails?

A

keratin

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14
Q

What is the acid mantle?

A

Protective layer of lipids and secretions on the skin’s surface?

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15
Q

Where in the body are the coiled structures known as apocrine glands?

A

underarm and genital areas

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16
Q

What is the result of the contraction of the arrector pili muscle?

A

goose bumps

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17
Q

What does the skin’s barrier function protect us from in addition to irritation?

A

intercellular water loss

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18
Q

What are ceramides?

A

glycolipid materials

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19
Q

What is collagen?

A

fibrous tissue made from protein

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20
Q

What are corneocytes?

A

hardened keratinocytes

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21
Q

What are membranes of ridges and grooves that attach the epidermis?

A

dermal papillae

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22
Q

Where in the face does the chronic condition rosacea primarily appear?

A

cheeks and nose

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23
Q

What protects the surface of the skin?

A

sebaceous glands

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24
Q

What are guard cells of the immune sysytem that sense unrecognized foreign invadors such as bacteria?

A

Langerhans immune cells

25
Q

What is oil that provides protection for the epidermis from external factors and that lubricates both the skin and hair?

A

sebum

26
Q

What is the common name for the stratum corneum?

A

horny layer

27
Q

What is the startum corneum?

A

the outtermost layer of the skin

28
Q

What is the most commo name for the stratum germiniativum?

A

basal layer

29
Q

Where in the skin is the stratum germiniativum located?

A

above the papillary layer of the dermis

30
Q

What is the common name of the stratum granulosom?

A

granular layer

31
Q

What forms the cells in the in the stratum granulosum that resemble granules?

A

keratin

32
Q

What is another name for the subcutaneous layer of the skin?

A

hypodermis

33
Q

What part of the skin provides a protective cushion and energy storage for the body?

A

subcutaneous layer/hypodermis

34
Q

What is another name for subcutis tissue?

A

adipose tissue

35
Q

What are the glands that excrete perspiration, regulate body temperature, and detoxify the body?

A

sudoriferous glands

36
Q

What cells identify molecules that have foreign peptides, and help to regulate immune response?

A

T-cells

37
Q

What causes telangiectasia?

A

capillary damage

38
Q

What causes transepidermal water loss (TEWL)?

A

evaporation

39
Q

What is the common term for UVA radiation?

A

aging rays

40
Q

What is the dermis?

A

support layer below the epidermis

41
Q

What functions do desmosomes perform?

A

assist in holding cells together

42
Q

What are eccine glands?

A

sweat glands

43
Q

What protein fiber is found in the dermis and gives skin its flexibility and firmness?

A

elastin

44
Q

What hormone stimulates cells to reproduce and heal?

A

epidermal growth factor (EGF)

45
Q

Outermost layer of skin?

A

epidermis

46
Q

What performs the function of stimulating cells, collagen, and amino acids that form proteins?

A

fibroblasts

47
Q

What comprises about 50-70% of the skin?

A

water

48
Q

What function does the enzyme tyrosinase perform?

A

stimulates melanocytes and thus produces melanin

49
Q

What is the other type of melanin the body produces, besides eumelanin?

A

pheomelanin

50
Q

How many times thicker than the epidermis is the dermis approx?

A

25

51
Q

When do free radicals produce more free radicals?

A

while casuing oxidation reactions

52
Q

What causes skin cells’ built-in antioxidents to loose their ability to protect cells

A

sun exposure

53
Q

Epidermal cells made up of of keratin, lipids, and other proteins.

A

keratinocytes

54
Q

Where in the skin are the lymph vessels loacted?

A

dermis

55
Q

Cells that produce skin pigment granules in the basal layer?

A

melanocytes

56
Q

Pigment carrying granules that produce melanin?

A

melanosomes

57
Q

What is true of the papillary layer of the skin?

A

it is the top layer of the dermis

58
Q

What is true of the reticular layer of skin?

A

it is the deepest layer of the dermis

59
Q

Really Pretty Good Skin Gets Lots of Compliments

A
Reticular
Papillary
Germinativum
Spinosum
Granulosum
Lucidum
Corneum