Integumentary System

Question 1

What is the Integumentary System?

Answer 1

The layers of skin and tissue forming the external surface of the body.

Question 2

What are the functions of the integumentary system?

Answer 2

Protection, sensory, and temperature regulation.

Question 3

What is the main component of the integumentary system?

Answer 3

The skin

Question 4

How many layers of skin are there?

Answer 4

Three

Question 5

What are the different layers of skin?

Answer 5

The epidermis, the dermis, and the hypodermis

Question 6

What is the outer layer/most superficial layer of skin?

Answer 6

The epidermis

Question 7

Does the epidermis contain any blood vessels?

Answer 7

No, the epidermis does not contain any blood vessels (it is considered avascular).

Question 8

What cells is the epidermis made up of?

Answer 8

Epithelial cells

Question 9

How many layers of epithelial cells is then epidermis made up of?

Answer 9

Four to five layers

Question 10

Along which layer do the newest epithelial cells form in the epidermis?

Answer 10

Along the bottom layer

Question 11

What are the different types of cells that then epidermis consists of?

Answer 11

Keratinocytes: produce keratin;
Melanocytes: produce melanin;
Merkel cells: contain nerve endings to sense touch;
Basal cells: mature keratinocytes;
Langerhans cells: macrophages to engulf foreign particles.

Question 12

Which layer is considered the “core” of integumentary system?

Answer 12

The dermis (the middle layer of the skin).

Question 13

Does the dermis contain blood vessels?

Answer 13

Yes, the dermis contains blood vessels.

Question 14

Does the dermis contain lymph vessels?

Answer 14

Yes, the dermis contains lymph vessels.

Question 15

Does the dermis contain nerves?

Answer 15

Yes, the dermis contains nerves.

Question 16

Does the dermis contain accessory structures?

Answer 16

Yes, then dermis contains accessory structures.

Question 17

What are the accessory structures that the dermis contains?

Answer 17

Hair, sudoriferous glands, sebaceous glands.

Question 18

What are the layers of the dermis?

Answer 18

The papillary layer and the reticular layer.

Question 19

What layer is the deepest layer of then skin?

Answer 19

The hypodermis

Question 20

What does the hypodermis do?

Answer 20

Attaches the skin to the bone.

Question 21

What tissue does the hypodermis contain?

Answer 21

Adipose tissue (fat cells).

Question 22

What does adipose tissue do?

Answer 22

• Stores fat, energy, and nutrients.
• Provides insulation and cushioning.

Question 23

What is skin pigmentation determined by?

Answer 23

• Melanin: found in the epidermis;
• Carotene: found in the dermis;
• Hemoglobin: found in blood capillaries in the dermis.

Question 24

What accessory structures are located in the integumentary system in general?

Answer 24

• Hair;
• Nails;
• Sudoriferous glands;
• Sebaceous glands.

Question 25

How does hair grow?

Answer 25

Hair originates in the dermis and grows through the epidermis to the skin surface.

Question 26

What is hair composed of?

Answer 26

Hair is composed of dead, keratinized cells.

Question 27

What roles does hair support?

Answer 27

- Protection; - Touch stimuli; - Thermoregulation.

Question 28

What does hair structure consist of?

Answer 28

- Follicle; - Shaft; - Root; - Bulb; - Arrector pili.

Question 29

What are nails?

Answer 29

Nails are structures on the epidermis of fingers and toes, which provide support and protection.

Question 30

What are nails composed of?

Answer 30

Nails are composed entirely of keratin.

Question 31

What role do sudoriferous glands play?

Answer 31

Sudoriferous glands produce sweat to cool the body.

Question 32

Where do sudoriferous glands originate from?

Answer 32

Sudoriferous glands originate in the dermis and project through the epidermis to a small opening.

Question 33

What glands are the sudoriferous glands comprised of?

Answer 33

The apocrine and eccrine gland.

Question 34

What role do sebaceous glands play?

Answer 34

Sebaceous glands are oil glands which lubricate and waterproof skin and hair, by producing and excreting sebum onto the skin surface.

Question 35

Aden/o

Answer 35

Gland

Question 36

Albin/o

Answer 36

White

Question 37

Bi/o

Answer 37

Life

Question 38

Cellul/o

Answer 38

Little cell

Question 39

Cutane/o

Answer 39

Skin

Question 40

Derm/a/o

Answer 40

Skin

Question 41

Dermat/o

Answer 41

Skin

Question 42

Erythr/o

Answer 42

Red

Question 43

Follicul/o

Answer 43

Little bag

Question 44

Hidr/o

Answer 44

Sweat

Question 45

Ichthy/o

Answer 45

Fish

Question 46

Icter/o

Answer 46

Jaundice

Question 47

Integument/o

Answer 47

A covering

Question 48

Kerat/o

Answer 48

Horn

Question 49

Leuk/o

Answer 49

White

Question 50

Melan/o

Answer 50

Black

Question 51

Myc/o

Answer 51

Fungus

Question 52

Onych/o

Answer 52

Nail

Question 53

Pedicul/o

Answer 53

A louse

Question 54

Psor/a

Answer 54

Itch

Question 55

Rhytid/o

Answer 55

Wrinkle

Question 56

Seb/o

Answer 56

Oil

Question 57

Trich/o

Answer 57

Hair

Question 58

Ungu/o

Answer 58

Nail

Question 59

Xanth/o

Answer 59

Yellow

Question 60

Acro-

Answer 60

Extremity

Question 61

An-

Answer 61

Without; Lack of

Question 62

Ec-

Answer 62

Out

Question 63

Hypo-

Answer 63

Under

Question 64

Intra-

Answer 64

Within

Question 65

Pachy-

Answer 65

Thick

Question 66

Photo-

Answer 66

Light

Question 67

Scler-

Answer 67

Hardening; Sclera

Question 68

Sub-

Answer 68

Below

Question 69

Thermo-

Answer 69

Hot, heat

Question 70

Xero-

Answer 70

Dry

Question 71

Xantho-

Answer 71

Yellow

Question 72

-al

Answer 72

Pertaining to

Question 73

-esthesia

Answer 73

Sensation

Question 74

-graft

Answer 74

To transplant or implant living tissue

Question 75

-ic

Answer 75

Pertaining to

Question 76

-ice

Answer 76

Pertaining to

Question 77

-ist

Answer 77

One who specializes

Question 78

-itis

Answer 78

Inflammation

Question 79

-logy

Answer 79

Study of

Question 80

-oma

Answer 80

Tumor

Question 81

-on

Answer 81

Pertaining to

Question 82

-opsy

Answer 82

View of

Question 83

-osis

Answer 83

Condition

Question 84

-ous

Answer 84

Pertaining to

Question 85

-rrhea

Answer 85

Flow

Question 86

-therapy

Answer 86

Treatment

Question 87

Ichthyosis

Answer 87

A disorder causing dry, thickened skin which appears scaly and rough.

Question 88

Psoriasis

Answer 88

Condition causing scaly skin that may swell or feel hot.

Question 89

Scleroderma

Answer 89

Condition characterized by the hardening and tightening of the skin.

Question 90

Xeroderma

Answer 90

Dry skin resulting in roughness, tightness, flaking, and scaling of the skin.

Question 91

Autograft

Answer 91

A bone, tissue, or organ that is transferred from one spot on the body to another,

Question 92

Biopsy

Answer 92

The removal of cells or tissues for examination by a pathologist.

Question 93

Electrodessication

Answer 93

The drying of tissue by a high frequency electric current applied with a needle-shaped electrode.

Question 94

Phototherapy

Answer 94

The treatment of disease with certain types of light.

Question 95

Acrochordon

Answer 95

A skin growth commonly known as a skin tag.

Question 96

Anhidrosis

Answer 96

Condition characterized by the inability to sweat.

Question 97

Cutaneous

Answer 97

Pertaining to the skin

Question 98

Dermatitis

Answer 98

Inflammation of the skin

Question 99

Dermatologist

Answer 99

A physician specializing in the study of the skin.

Question 100

Dermatology

Answer 100

Study of the skin

Question 101

Ecchymosis

Answer 101

Bleeding underneath the skin which causes discoloration

Question 102

Folliculitis

Answer 102

Inflammation of the follicles.

Question 103

Hypodermic

Answer 103

Pertaining to under the skin.

Question 104

Intradermal

Answer 104

Pertaining to within the skin.