Integumentary System

Helpfulness: 0
Set Details Share
created 4 years ago by Rae_Harrison
517 views
Identifying the different layers of the skin and its properties
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

What is the largest system in the body?

the Integumentary System

2

What are the main cutaneous glands?

Sweat (sudoriferous) glands

Sebaceous glands

3

What portion of the Integumentary system is avascular?

the top most layer

4

Where are eccrine sweat glands found?

palms

soles of feet

forehead

5

Where are Apocrine sweat glands found?

axillary

nipples

groin

anogenital areas

6

what do sebaceous glands secret?

oil (sebum)

7

What is the type of Sebaceous glands?

Holocrine glands

8

what does sebum contain?

lipids

9

Apocrine glands are found where?

with the hair follical

10

What are the components of the Cutaneous Membrane?

Outer Epidermis

Inner Dermis

Connective tissue

11

What are the two main componants of the Cutaneous Membrane?

Skin and accessory structures

12

What are the accessory structures for the Integumentary system?

Hair

Nails

Multicellular exocrine glands

13

In what layer of skin do the blood vessels lie?

Dermis

14

What other body system works in close relation to the inegumnentary system?

Nervous

using pain, touch, and temperature

15

Give two other names for the Hypodermis.

Superficial layer

Subcutaneous layer

16

What is the hypodermis made up of?

loose connective tissue

17

What is the location of hypodermic injections?

Hypodermis

18

What sweat gland is associcated with hair?

apocrine gland

19

What sweat gland is associated with skin?

epocrine gland

20

This is found in thick skin, not in thin skin.

Stratum lucidium

21

The skin has 8 major functions. What are they?

Protection

Excretion

Regulate temperature

Production of Melatin

Production of Karatin

Synthesis of Vitamin D-3

Storage

Detection

22

What is the epidermis made of?

Stratified Squamous

23

What are the main cells of the Epidermis?

Keratinocytes

24

What structural protein makes up the hair, skin, and nails?

Keratin

25

Where is thin skin located and how many layers of keratinocytes does it have?

over most of the body

4 layers

26

Where is thick skin located and how many layers of keratinocytes does it have?

hand palms

soles of feet

5 layers

27

Name the 5 Strata of Keratinocyte layers in thick skin.

Stratum corneum

stratum lucidum

stratum granulosum

stratum spinosum

stratum basale

28

Describe the Stratum Corneum (top most layer) of skin.

multiple layers of flat dead interlocking keratinocytes

Water resistant but not water proof

permits slow water loss by presperation

29

What layer does thick skin have that thin skin doesn't?

stratum lucidum

30

Which layer is made up of keratinocytes bound by desmosomes?

Stratum spinosum

31

What happens in the Stratum granulosum?

produces keratehyalllin and keratin

keratin fibers develop as cells

plasma thickens, killing the organelles and the cell dies

32

What layer attaches to the basement membrane?

Stratum bassale

33

The stratum bassale contains what three kinds of cells?

basal stem cells

melanocytes

Merkle cells (tactile cells)

34

How thick is the Stratum Bassale?

1 cell layer thick

35

How does the Stratum bassale layer attach to the basement membrane?

hemidesmosomes

36

Which layer forms the basis for finger prints and what are they called?

stratum basale layer

epidermal ridges

37

Where do you find dermal papillae?

Stratum basale

38

What do dermal papillae do?

increase the area of basement membrane

strengthen the attachment between dermis and epidermis

39

Whats another name for basal cells and where are they found?

germinative cells

found in the stratum basale

40

What kind of skin contains merkle cells?

hairless skin

41

What cells in the stratum basale contain melanin?

melanocytes

42

What cell layer of the epidermis is known as the "Spiny Layer"?

Stratum spinosum

43

How is the stratum spinosum layer made?

produced by the division of the stratum basale

44

The stratum spinosum is made up of how many layers of keratinocytes?

8-10

45

what is the stratum spinosum keratinocytes bound by?

desmosomes

46

How did the Stratum Spinosum get its nick-name, the spiny layer?

the cells shrink until cytoskeletons stick out

47

What's another name for the Statum Granulosum?

The "Grainy Layer"

48

What is Keratin?

a tough, fibrous protein that makes up hair and nails

49

What is produced in the stratum granulosum?

Keratin

Keratohyalin

50

What is Keratohyalin?

dense granules

cross linked keratin fibers

51

What is the cell life like in the stratum granulosum?

produce protein fibers

dehydrate and die

create tightly interlocked layer of kertain surrounded by keratohylin

52

Another name for the stratum lucidum is what?

the clear layer

53

The stratum granulosum is covered by what?

the stratum lucidum

54

What layer is known as the "horn layer"?

Stratum corneum

55

About how many layers of keratinized skin is the stratum corneum made up of?

15--30 layers

56

how long does it take for the stratum corneum to shed and be replaced?

two weeks

57

Keratinization is what?

the formation of a layer of dead protective cells filled with keratin

58

where does keratinization occur?

on all exposed skin surfaces except eyes

59

In the skin life cycle, how long does it take for a cell to move from the stratum basale to stratum corneum?

7 to 10 days

60

Skin color is influenced by what two pigments?

Carotene and Melanin

61

What color is carotene?

Orange Yellow

62

what color is Melanin?

yellow brown or black

63

Along with skin, where else can you find carotene?

in orange veggies

64

Carotene can be converted into what vitamin?

Vitamin A

65

Where does Carotene accumulate?

in epidermal cells and fatty tissues of the dermis

66

Where is Melanin stored?

in transport vesicles called melanosomes

67

after being stored, where is melanin transported to?

keratinocytes

68

What is the function of Melanocytes?

protects skin from UV damage

cause DNA mutations and burns that lead to cancer/wrinkles

helps to decide skin color

69

Skin color is controlled by what?

the production of melanin

70

Whats another name for moles?

Nevus

71

how does a mole develop?

when melanocytes grow in clusters

72

Most adults have about how many common moles?

between 10-40

73

are dysplastic nevi always cancerous?

no.

74

What is the "ABCDE" rule?

description for early melenoma

75

What does the "ABCDE" rule stand for?

Asymmetry

Border

Color

Diameter

Evolving

76

The dermis consists of two layers. what are they?

Outer papillary layer

deep reticular layer

77

What layer of skin is the anchor for accessory structures?

dermis

78

What kind of tissue is the papillary layer made up of?

Areoler

79

What layer of the dermis has dermal papillae projecting between epidermal ridges?

The papillary layer

80

The Reticular layer of the dermis contains what two big fibers?

Collagen and elastic

81

what fibers are very strong, resist stretching but bend easily?

Collagen

82

What fibers permit stretching and then recoil to their original length and limit the flexibility of collagen fibers to prevent tissue damage?

Elastic fibers

83

What lines in the skin establish important patterns?

cleavage lines

84

What kind of cut will remain shut and heal well?

a parallel cut

85

what kind of cut will most likely scar?

a right angle or cross cut

86

Where does the Reticular layer get its blood supply from?

The cutaneous plexus

87

Where does the papillary layer get its blood supply from?

papillary plexus

88

Damage to blood vessels resulting in bruising can happen to what plexus?

Venus plexus

89

Nerve fibers in the skin control what?

Blood flow

gland secretions

sensory receptors

90

Light touch receptors are called what and located where?

tactile corpuscles

dermal papillae

91

Deep pressure and vibration receptors are called what and located where?

lamellated corpuscles

reticular layer

92

The hypodermis is also known as what?

the subcutaneous layer

93

what is the hypodermis made of?

elastic areolar and adipose tissue

94

what are the two types of exocrine glands?

Sebaceous

sweat glands

95

What are the two types of sweat glands?

apocrine

eccrine

96

What type of sebaceous gland is associated with hair follicles?

simple branched areolar glands

97

What kind of sweat glands are found in the armpit, nipples, and groin?

Apocrine

98

Apocrine glands are surrounded by what kind of cells?

myoepithielial cells

99

What is another name for eccrine sweat glands?

Merocrine

100

Eccrine glands main job is to do what?

cool skin

excrete water and electrolytes

flush microorganisms from skin

101

Mecrocine (Eccrine) glands are controlled how?

independently and sweating occurs locally

102

What system controls the sebaceous and apocrine sweat glands?

The autonomic nervous system (ANS)

103

What areas of the body do NOT have hair?

palms, soles, lips, and portions of external genitalia

104

what is the function of hair?

protect

insulate

guard openings

sensitive to light touch