Test

Question 0

What layers make up the skin?

Answer 0

Epidermis, dermis, hypodermis

Question 1

What does the integumentary system include?

Answer 1

Skin, appendages, glands

Question 2

What are appendages?

Answer 2

Nails, hair, glands

Question 3

What are the 3 types of glands?

Answer 3

Subaceous- oil
Sudiferous - sweat
Ceremenous - wax

Question 4

The epidermis is what type of epithelium?

Answer 4

Squamous stratified keratinized epithelium

Question 5

Squamous means?

Answer 5

Looks like fish cells

Question 6

Keratinized means?

Answer 6

Make keratin- prevent water loss

Question 7

What are strata?

Answer 7

Layers

Question 8

What are the 5 strata from bottoms to top?

Answer 8

Basale, spinosum, granulosum, lucidum, corneum

Question 9

What is the basale layer known for

Answer 9

Constantly reproducing….. 15%melanocytes….

Question 10

War is the spinosum layer known for

Answer 10

Spiky…. Spina- spine

Question 11

Granulosum is known for?

Answer 11

Granules of kerati

Question 12

Lucidum is known for?

Answer 12

See thru

Question 13

Corneum is known for?

Answer 13

Dried up keratinocytes… Kera- horn- protein… Cornu- horn, firm

Question 14

True of false- the epidermis has great regeneration?

Answer 14

True

Question 15

Melanocytes produce melanin which is a _ _ _

Answer 15

Sun protective factor….SPF

Question 16

Epidermis contains

Answer 16

Melanin and beta carotene

Question 17

Amount of melanin determines

Answer 17

Skin and hair color

Question 18

Beta carotene is what color and has what purpose in the skin

Answer 18

Orangey and helps skin regenerate faster

Question 19

If you have excess beta carotene it manifests as

Answer 19

Orange palms and soles

Question 20

Jaundice is yellowing of what and is a dx of what

Answer 20

Skin and sclera… Liver

Question 21

Pale skin is also called

Answer 21

Pallor

Question 22

Name the cells in the epidermis

Answer 22

Keratinocytes
Melanocytes
Merkel Cells - sensory receptors
Langerhans cells - Wei qi- defensive immunity cells

Question 23

What is the issue with people who have light skin and the sun?

Answer 23

Cancer from over exposure to UV

Question 24

Dark skin people have what issue with the sun

Answer 24

Vitamin d deficiency

Question 25

Keratin begins to die in what layer?

Answer 25

Granulosum

Question 26

How many layers are in the basale?

Answer 26

One layer

Question 27

What is the basale mostly made of?

Answer 27

Melanocytes

Question 28

Where are the youngest keratinocytes?

Answer 28

Basale

Question 29

How thick is the spinosum ?

Answer 29

Several layers

Question 30

The lucidum exists where?

Answer 30

Only on hands and feet

Question 31

We're do langhana cells exist?

Answer 31

Stratum Spinosum

Question 32

The epidermis is vascular or avascular?

Answer 32

Avascular - has no blood vessels

Question 33

The dermis is avascular or vascular?

Answer 33

Vascular- bleeds due to network (plexus) of vessels

Question 34

What are the layers of the dermis?

Answer 34

Papillary and reticular

Question 35

What is the papillary layer known for?

Answer 35

Finger prints!

Question 36

What is the reticular layer known for?

Answer 36

Houses glands and hair follicles that open to skin surface

Question 37

Wht are tension lines?

Answer 37

Less dense regions btwn bundles of collagen

Question 38

Define fibrocyte

Answer 38

Main cell of dermis- produce strong stretchable fibers of collagen and elastin

Question 39

Define exteacellular material

Answer 39

Between fibrocytes that create frame of dermis...between cells and fibers is filled with ground substance- clear sticky jelly

Question 40

What are the functions of skin?

Answer 40

1. Vitamin D production 2. Prevent dehydration 3. Thermoreulation 4. Mechanical protection- keratin 5. Protection against pathogen invasion

Question 41

How does the skin protect from outside pathogen invasion?

Answer 41

Sweating, acidity, langerhans cells

Question 42

Wy can't we breathe through our skin?

Answer 42

We can't transport o2 and co2 thru skin- only lungs can do this job. Skin breathes by opening and closing pores to thermoregulate

Question 43

What are sudiferous glands and what do they secrete?

Answer 43

Sweat- 99% water, w urea, lactic acid, as orbit acid, and sodium chloride

Question 44

What are sebaceous glands and what do they secrete

Answer 44

Skin oil that's acidic bactericidal and prevents dehydration.... (Over production of oil- sebhorrhea)

Question 45

What is the central part of the hair shaft called?

Answer 45

Medulla

Question 46

Growth of hair is accelerated by what hormone

Answer 46

Androgens- male sex hormone

Question 47

Follicle means

Answer 47

Bag

Question 48

Hirsutism

Answer 48

Women with too much hair due to lots of androgen

Question 49

Red hair is created how

Answer 49

Accumulation of salts of iron (rust)

Question 50

Define Terminal hair

Answer 50

Thicker longer pigmented

Question 51

Lanugo

Answer 51

Soft, colorless, fuzzy hair

Question 52

Arrector pills

Answer 52

Hair raising muscles....when muscles contract, these tighten to prevent heat loss... They also generate hear by contracting to increase body temp (essential in thermoregulate)

Question 53

Lanula

Answer 53

Nails grow from here, if damaged, nail stops growing

Question 54

Skin cancer- basal cell carcinoma

Answer 54

Least malignant

Question 55

Squamous cell carcinoma

Answer 55

if treated early, prognosis is okay

Question 56

Melanoma

Answer 56

Most aggressive and invasive cancer

Question 57

Wht is melanoma from?

Answer 57

Excess exposure to uv rays Genetic predispo Low immunity Toxocity

Question 58

ABCDs of cancer?

Answer 58

A- assymetry B- border irregularity C- color change (dark) D- diameter (increasing)