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MILADY - ESTHETICS > PART 3: SKIN SCIENCES/ CHAPTER 10: Physiology And Histology Of The Skin > Flashcards

PART 3: SKIN SCIENCES/ CHAPTER 10: Physiology And Histology Of The Skin Flashcards

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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 of 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

Hyper production 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 nerve endings

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5
Q

What are most abundant in the fingertips, as opposed 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

Why does the body perspire?

A

To protect us from overheating

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8
Q

What are follicles?

A

Tubelike openings in the epidermis

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9
Q

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

A

Sebum

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10
Q

What is glycation?

A

The binding of a protein molecule to a glucose molecule.

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11
Q

What are hair papillae?

A

Cone-shaped elevations at the base of the follicle.

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12
Q

Where in the body is hyaluronic acid found?

A

Skin

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13
Q

What is hydrolipidic film?

A

Oil-water balance that protects the skin’s surface.

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14
Q

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

A

Keratin

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15
Q

What is the acid mantle?

A

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

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16
Q

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

A

Underarm and genital areas

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17
Q

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

A

Goose bumps

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18
Q

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

A

Intercellular water loss

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19
Q

What are ceramides?

A

Glycolipid materials

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20
Q

What is collagen?

A

Fibrous tissue made from protein

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21
Q

What are corneocytes?

A

Hardened keratinocytes

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22
Q

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

A

Dermal papillae

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23
Q

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

A

Cheeks and nose

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24
Q

What protects the surface of the skin?

A

Sebaceous glands

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25
What are guard cells of the immune system that sense unrecognized foreign invaders, such as bacteria?
Langerhans immune cells
26
What is oil that provides protection for the epidermis from external factors and that lubricates both the skin and hair?
Sebum
27
What is the common name for the stratum corneum?
Horny layer
28
What is true of the stratum corneum?
It is the outermost layer of the skin.
29
What is the common name of the stratum germiniativum?
Basal layer
30
Where in the skin is the stratum germinativum located?
Above the papillary layer of the dermis.
31
What is the common name of the stratum granulosum?
Granular layer
32
What forms the cells in the stratum granulosum that resemble granules?
Keratin
33
What is the common name for the stratum corneum?
Horny layer
34
What is another name for the subcutaneous layer of the skin?
Hypodermis
35
What part of the skin provides a protective cushion and energy storage for the body?
Subcutaneous layer
36
What is another name for subcutis tissue?
Adipose tissue
37
What are the glands that excrete perspiration, regulate body temperature, and detoxify the body?
Sudoriferous
38
What cells identify molecules that have foreign peptides, and help to regulate immune response.
T-cells
39
What causes telangiectasia?
Capillary damage
40
What causes transepidermal water loss?
Evaporation
41
What is a common term for UVA radiation?
Aging rays
42
What is the dermis?
Support layer below the epidermis.
43
What function do desmosomes perform?
Assist in holding cells together
44
What are eccrine glands?
Sweat glands
45
What protein fiber is found in the dermis and gives skin its flexibility and firmness?
Elastin
46
What hormone stimulates cells to reproduce and heal?
Epidermal growth factor (EGF)
47
What is true of the epidermis?
It is the outermost layer of the skin
48
What performs the function of stimulation cells , collagen, and amino acids that form proteins?
Fibroblasts
49
What term do clients commonly use when referring to follicles?
Pores
50
What comprises about 50 to 70 percent of the skin?
Water
51
What causes the body to produce its own vitamin D?
Exposure to the sun
52
What is NOT one of the six primary functions of the skin?
Reflection
53
What function does the enzyme tyrosinase perform?
Stimulates melanocytes and thus produces melanin
54
What is the other type of melanin the body produces, besides eumelanin?
Pheomelanin
55
How many times thicker that the epidermis is the dermis, approximately?
25
56
When do free radicals produce more free radicals?
While causing oxidation reactions
57
What causes skin cells built-in antioxidants to lose their ability to protect cells?
Sun exposure
58
What is true of sun exposure?
Of all factors , it has the greatest impact on how our skin ages.
59
What are keratinocytes?
Epidermal cells composed of keratin, lipids, and other proteins.
60
Where in the skin are lymph vessels located?
Dermis
61
What protein determines hair, eye , and skin color?
Melanin
62
What are melanocytes?
Cells that produce skin pigment granules in the basal layer.
63
What are melanosomes?
Pigment- carrying granules that produce melanin
64
What is true of the papillary layer of the skin?
It is the top layer of the dermis.
65
What is true of the reticular layer of the skin?
It is the deepest layer of the dermis

MILADY - ESTHETICS (23 decks)

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