Skin Layers Plus Function Flashcards Preview

Integumentary system > Skin Layers Plus Function > Flashcards

Flashcards in Skin Layers Plus Function Deck (51):
1

What are the layers of the skin?

Epidermis
Dermis
Hypodermis (fatty tissue, adipose, subcutaneous tissue)

2

How many layers in the epidermis?

5

3

What are the layers of the epidermis?

Stratum corneum
Stratum lucidum
Stratum Granulosum
Stratum spinosum
Stratum germinativum (basale)

4

What is the stratum germanitivum?

It's alive
Connected with stratum spinosum both are basal layer
Mitosis happens
Has melanocytes

5

What it's keratinization?

When the cells go up to the surface of the skin

6

What is desquamation?

When cells sloughs off

7

Stratum spinosum?

The stratum germanitivum and spinosum are connected together (basal layer)
Mitosis forms
And make melanocytes

8

Stratum granulosum?

Middle layer of epidermis
Cells are dead
80% dead

9

Stratum lucidum?

It's a see through
Because we need some Vit D in our body

10

Stratum corneum?

It has 15 to 20 layers
Dead skin cells

11

How many melanocytes do we have?

15 thousand per sq ft
Melanocytes it's our natural sunblock

12

How many days do our skin cells surface to skin?

28 days but the older we get the slower it keratinize
Baby it's 3-4 days

13

How many layers in the dermis?

Two layers
Reticular and papillary layer

14

Papillary layer?

Upper layer of the dermis
30%
Contains more capillaries (touch heat cold )

15

Reticular layer?

2nd layer of the dermis
70%
Composed of water
Nerve endings
Blood vessels
Has fibroblast cells

16

Fibroblasts?

In the reticular layer of the dermis
1 is a fibrocyte
Produces collagen (70%) and elastin (30%) and gligcocinimoglycans which is a sugar molecule holding water to skin

17

How do fibroblast works?

After 25 we don't produce any collagen or elastin
Once you hit menopause after 5 yrs we lose 30% collagen +elastin

18

What are floaters?

Floaters It's collagen floating around
If we see them we need to decrease sugar and take antioxidants and vitamins

19

How can we trigger the fibroblast ?

Anytime we do trauma to the skin we stimulate the fibroblast
-microneddling
-microdermabrasion (aggressively)
Chemical peel (deep peel)
Last (dr does)

20

Macrophages?

It's a leukocyte (white blood cells)
In the dermis
Devours foreign material such as bacteria to protect body
Thus removing dead debris
1st line of defense

21

Subcutaneous tissue other names ?

Hypodermis
Fatty tissue
Adipose

22

What it's a septae?

It's a division connects the adipose (hypodermis) with the dermis

23

What happens with the septae?

Over time it can stretch like a rubber band
When septae goes up we get cellulite

24

What's the diff between fat and cellulite ?

It's location. When it's up we get cellulite

25

What are fat cells?

Fat cells store lipids
It has one nucleus in one side and the remainder is filled with lipid (glisterol, h20, CO2, toxins)
More numerous in the hypodermis

26

What are the chromatatophores?

In the dermis
When the epidermis is heavily pigmented they obtain pigment from the melanocytes in the epidermis

27

How do the chromatatophores get the pigment?

From the epidermis it goes down to the dermis and it's hard to remove it produces very fast

You need a fading cream (hydrocortisone licorine extract )

28

Why does septae break ?

From menopause
Illness
Genetic
Diet
Sugar

29

What’s the responsibility of the skin?

Protect
Excretion of sweat
Secretion of oil
Contour
Storage of fats
Growth of appendages (hair nails sweat oil gland )
Heat regulation

30

What it’s the acid mantle?

It’s dead skin
Oil and sweat gland make up acid mantle
Oil
Water
Protects us against other pathogens

31

How many glands in a follicle ?

2
Oil gland (release oil)
Sweat gland ( h20 minerals and electrolites )

32

Ph of the skin?

4.5 to 6.5

33

Acid?

0 1 23 it’s acid

34

Alkaline ?

10 11 12 more alkaline
Dry flaky (soap water ?

35

What does the oil gland do in the follicle ?

Oil goes up to surface of pore

36

Sweat gland do? In the follicle ?

Releases water , electrolytes goes up surface of skin

37

How many types of
Follicles ?

2
Apocrine
Eccrine

38

Appocrine?

Hormones
When nervous
Emotional control
In the hair follicle

39

Eccrine ?

Another sweat pore
If room gets hot
Physical hot
Gives u goosebumps
It pumps water after waxing

40

What activates melanocytes ?

Sun
Trauma
Hormones

41

Where are the melanocytes present?

Basal layer
The gernanitivum and spinosum it’s the basal layer

42

Fitz 1 2 and 3. What type of spf ?

SPF 30

43

Fitz 4 5 6? What type of spf?

Spf 15 bcuz u could handle more sun
Don’t burn that much

44

What are cytokines ?

Messengers communicates cells tells cells what to do

45

Epidermis is more oil loving or water loving ?

Oil loving

46

Is dermis more oil loving or water loving ?

Water loving

47

Does hyaloronic acid penetrate deep?

No because epidermis is more oil loving

Oil and water don’t mix
We need to use hyaloronic in a liposome

48

How does the filler work?

Filler goes inside the dermis
It has hyaloronic acid
To go down to the dermis

49

How do we put product into the dermis?

Ultrasound
Galvanic

50

How does the spf work ?

Ex spf 30

15 mins u burn
Apply spf 30
= 450 mins after u apply sunblock

51

Melanogemesis ?

Sun shines on skin
Free radicals -oxygen loses electron
Cytokines melanin stimulates hormone
Binds to tyrosinase ???