Skin Sciences

Question 1

Why is UVB radiation also known as burning rays?

Answer 1

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

Question 2

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

Answer 2

blood

Question 3

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

Answer 3

hyperproduction of cells

Question 4

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

Answer 4

sensory and nerve endings

Question 5

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

Answer 5

sensory nerve fibers

Question 6

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

Answer 6

98.6

Question 7

What are follicles?

Answer 7

Tubelike openings in the epidermis

Question 8

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

Answer 8

sebum

Question 9

What is glycation?

Answer 9

binding of a protein molecule to a glucose molecule

Question 10

Cone-shaped elevations at the base of a follicle?

Answer 10

hair papillae

Question 11

Where in the body is hyaluronic acid found?

Answer 11

skin

Question 12

What is hydrolipidic film?

Answer 12

oil- water balance that protects the skin’s surface

Question 13

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

Answer 13

keratin

Question 14

What is the acid mantle?

Answer 14

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

Question 15

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

Answer 15

underarm and genital areas

Question 16

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

Answer 16

goose bumps

Question 17

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

Answer 17

intercellular water loss

Question 18

What are ceramides?

Answer 18

glycolipid materials

Question 19

What is collagen?

Answer 19

fibrous tissue made from protein

Question 20

What are corneocytes?

Answer 20

hardened keratinocytes

Question 21

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

Answer 21

dermal papillae

Question 22

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

Answer 22

cheeks and nose

Question 23

What protects the surface of the skin?

Answer 23

sebaceous glands

Question 24

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

Answer 24

Langerhans immune cells

Question 25

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

Answer 25

sebum

Question 26

What is the common name for the stratum corneum?

Answer 26

horny layer

Question 27

What is the startum corneum?

Answer 27

the outtermost layer of the skin

Question 28

What is the most commo name for the stratum germiniativum?

Answer 28

basal layer

Question 29

Where in the skin is the stratum germiniativum located?

Answer 29

above the papillary layer of the dermis

Question 30

What is the common name of the stratum granulosom?

Answer 30

granular layer

Question 31

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

Answer 31

keratin

Question 32

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

Answer 32

hypodermis

Question 33

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

Answer 33

subcutaneous layer/hypodermis

Question 34

What is another name for subcutis tissue?

Answer 34

adipose tissue

Question 35

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

Answer 35

sudoriferous glands

Question 36

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

Answer 36

T-cells

Question 37

What causes telangiectasia?

Answer 37

capillary damage

Question 38

What causes transepidermal water loss (TEWL)?

Answer 38

evaporation

Question 39

What is the common term for UVA radiation?

Answer 39

aging rays

Question 40

What is the dermis?

Answer 40

support layer below the epidermis

Question 41

What functions do desmosomes perform?

Answer 41

assist in holding cells together

Question 42

What are eccine glands?

Answer 42

sweat glands

Question 43

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

Answer 43

elastin

Question 44

What hormone stimulates cells to reproduce and heal?

Answer 44

epidermal growth factor (EGF)

Question 45

Outermost layer of skin?

Answer 45

epidermis

Question 46

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

Answer 46

fibroblasts

Question 47

What comprises about 50-70% of the skin?

Answer 47

water

Question 48

What function does the enzyme tyrosinase perform?

Answer 48

stimulates melanocytes and thus produces melanin

Question 49

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

Answer 49

pheomelanin

Question 50

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

Answer 50

25

Question 51

When do free radicals produce more free radicals?

Answer 51

while casuing oxidation reactions

Question 52

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

Answer 52

sun exposure

Question 53

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

Answer 53

keratinocytes

Question 54

Where in the skin are the lymph vessels loacted?

Answer 54

dermis

Question 55

Cells that produce skin pigment granules in the basal layer?

Answer 55

melanocytes

Question 56

Pigment carrying granules that produce melanin?

Answer 56

melanosomes

Question 57

What is true of the papillary layer of the skin?

Answer 57

it is the top layer of the dermis

Question 58

What is true of the reticular layer of skin?

Answer 58

it is the deepest layer of the dermis

Question 59

Really Pretty Good Skin Gets Lots of Compliments

Answer 59

``` Reticular Papillary Germinativum Spinosum Granulosum Lucidum Corneum ```