4/22

Question 1

3 primary social dimensions

Answer 1

age
race
gender

everyone can potentially join AGE

Question 2

drop off age in movies

Answer 2

40-60

due to agism and sexism

Question 3

skin aging process

Answer 3

more time to recover

reduction in number and activity in stem cells

skin becomes thinner – decrease protection

Question 4

collagen fibers where

Answer 4

dermal / second layer

Question 5

elastic fibers

Answer 5

dermal layer

not stretching as much

Question 6

skin aging

Answer 6

reduction in stem cell
thinner
fiber deteriation 
facial expressions
less immune cells
more sun exposure

Question 7

largest organ is

Answer 7

skin

Question 8

skin specific functions / broad categories

Answer 8

1. protective
   - barrier against thermal and mechanical and pathogenic
   - by epidermis (physical)
2. sensory
   mechanoreceptors
3. thermoregulatory
   - fatty layer / hair = thermo regulation

sweat glands - remove excess heat

4. metabolic
   - water electrolyes and proteins
5. sexual signaling

reflect identity and mood

Question 9

skin layers

Answer 9

epidermis and dermis

Question 10

dermis from

Answer 10

mesoderm

papillary and reticular layer

Question 11

epidermis from what layer

Answer 11

ectoderm

Question 12

keratinocytes manly in

Answer 12

epidermis

Question 13

bind and process antigens

Answer 13

langerhans in stratum spinosum

Question 14

stratum lucedum

Answer 14

only in thick skin

Question 15

reticular layet

Answer 15

thicker layer in dermis
bundles of type 1 collagen
more fibers than cells
lymph is here

Question 16

subcutis layer

Answer 16

below dermis

Question 17

subcutis layer

Answer 17

below dermis

Question 18

mechanoreceptros

Answer 18

stretch

vibration

Question 19

thermo receptors

Answer 19

hot and cold

Question 20

nociceptors

Answer 20

pain receptors

Question 21

unencapsulated

Answer 21

merkel -

peripheral nerve endings

peripheral root plexes

Question 22

encapsulated

Answer 22

FASTER
miesner corpuscles - light touch . in lips a lot

pacinian – pressure touch - palms and soles

ruffini - reticular layer of dermis

Question 23

eocrine glands not where

function?

Answer 23

on lips

thermoregulation and excretion , and protection

Question 24

late in first trimester

Answer 24

epidermis invaded by langerhans celss - arise from precurser in bone marrow

Question 25

late in first trimester

Answer 25

epidermis invaded by langerhans celss - arise from precurser in bone marrow

Question 26

merkel cells appear

Answer 26

8-12 weeks

light touch

Question 27

intrinsic factors of aging

Answer 27

genetics 
time
expressivity
atrophy of dermis and tissue
bne resorption and change

Question 28

extrinsic factors

Answer 28

gravity
sun exposure
smoking

Question 29

90 % of aging is

Answer 29

environmental

Question 30

typical for smokers - appearance

Answer 30

loose under eye skin - typical for smokers

Question 31

eyelid ptosis apparent on

Answer 31

smokers

Question 32

1980s used what for fillers

Answer 32

bovine collagen