Integumentary System

Front 1

The integumen/integumentary system makes up ___% of the body.

Back 1

The integumen/integumentary system makes up 16% of the body.

Front 2

Its surface is ____ - ____ in area.

Back 2

Its surface is 1.5 - 2m2 in area.

Front 3

The integumentary is your body's first ___ of _____.

Back 3

The integumentary is your body's first line of defense.

Front 4

The integumentary system has two major components: the ______ and the _____.

Back 4

The integumentary system has two major components: the CUTANEOUS MEMBRANE covering the body surface and the DERMIS, the deep layer of skin tissue.

Front 5

How does the number of melanocytes differ in people with different skin tones? Is it A) roughly the same or B) more in people with darker skin?

Back 5

A) roughly the same -- melanin, not melanocytes, affects skin color.

Front 6

How long does it take for new skin cells to reach the surface of the body? Is it A) two days or B) one month?

Back 6

The answer is B) one month. It takes about four weeks for the cells to travel from the stratum germanitivum to the stratum corneum.

Front 7

What is the layer of epidermal cells that gives rise to "thick skin?" Is it A) Stratum corneum or B) Stratum lucidum?

Back 7

The answer is B) Stratum lucidum. The stratum lucidum is the source of thick skin.

Front 8

Variations in hair color are a result of differences in concentrations of A) melanin or B) carotene?

Back 8

The answer is A) melanin. Hair coloration is derived from melanin pigments.

Front 9

What is the area of the hair that houses the live cells? Is it A) the hair matrix or B) the hair shaft?

Back 9

The answer is A) the hair matrix. The only portion of the hair with live cells is the hair matrix.

Front 10

The product of suderiferous glands contains how much water? Is it A) 99% water or B) 1% water?

Back 10

The answer is A) 99% water. Suderiferous glands are sweat glands and the product is 99% water and 1% salts and electrolytes.

Front 11

Glands that secrete sebum, normally associated with hair follicles.

Back 11

SEBACIOUS GLANDS secrete sebum and are associated with hair follicles,

Front 12

Smooth muscles whose contractions force hair to stand on end.

Back 12

ARRECTOR PILI cause hair to stand on end.

Front 13

The spread of cancer from one organ to another.

Back 13

METASTASIS is the spread of cancer from one organ to another.

Front 14

Movement toward the midline of the body.

Back 14

ADDUCTION: Movement toward the midline of the body.

Front 15

Sweat glands that produce a watery secretion.

Back 15

ECCRINE GLANDS. Sweat glands that produce a watery secretion.

Front 16

Sweat glands are also called

Back 16

Sweat glands are also called
ECCRINE GLANDS

Front 17

Inflammation of the skin is called ____________.

Back 17

Inflammation of the skin is called DERMITIS.

Front 18

The connective tissue beneath the
epidermal layer of skin:

Back 18

DERMIS is the connective tissue beneath the epidermal layer of skin.

Front 19

The skin is also called the _______.

Back 19

The skin is also called the INTEGUMEN.

Front 20

Define Infection

Back 20

Define Infection

The invasion and colonization of body tissues by pathogens.

Front 21

Define Epidermus

Back 21

Define Epidermus

The epithelium covering the surface of the skin.

Front 22

Define Scar Tissue

Back 22

Define Scar Tissue

A thick, collagenous tissue that collects at an injury site.

Front 23

Define Cortex

Back 23

Define Cortex

Outer layer or portion of an organ or bone.

Front 24

Define Subcutaneous Layer

Back 24

Define Subcutaneous Layer

The layer of loose connective tissue below the dermis; also called hypodermis or superficial fascia.

Front 25

Define Erythema

Back 25

Define Erythema

Erythema: Redness or inflammation at the surface of the skin.

Front 26

Define dehydration

Back 26

Define dehydration

Dehydration: a reduction in water content of the body threatening homeostasis.

Front 27

Define Cyanosis

Back 27

Define Cyanosis

Cyanosis: A bluish coloration of the skin due to deoxygenated blood vessels next to the body surface.

Front 28

Define Avascular

Back 28

Define Avascular

Avascular: without blood vessels.

Front 29

Define Alba

Back 29

White

Front 30

Superficial Fascia

Back 30

Superficial Fascia. Also called hypodermis. Loose, fatty tissue that binds the skin to the parts beneath. Same as hypodermis and subcutaneous layer

Front 31

Keratin

Back 31

The tough, fibrous component of nails, hair, calluses and general integumentary surface.

Front 32

Menalocyte

Back 32

Melanocyte
A cell that produces melanin. Located deep in the stratified squamous epithelium of the skin.

Front 33

melanocyte-stimulating hormone

Back 33

melanocyte-stimulating hormone.

A pituitary hormone that stimulates melanin production.

Front 34

epidermis

Back 34

epidermis. The epithelium covering the surface of the skin.

Front 35

Albicans

Back 35

Albicans. White.

Front 36

Avascular.

Back 36

Avascular. Without blood vessels.

Front 37

Cerumen.

Back 37

Cerumen. The waxy secretion of ceruminous glands. Ear wax.

Front 38

Lamellated corpuscle.

Back 38

Lamellated corpuscle. A receptor sensitive to vibrations.

Front 39

Cortex

Back 39

Cortex. The outer layer of an organ or bone.

Front 40

Nail.

Back 40

Nail. A keratinous structure produced by epithelial cells of the nail root.

Front 41

Langerhans cells.

Back 41

Langerhans cells. Also dendric cells. Present antigens to T-cells to help fight pathogens.

Front 42

Nutrient

Back 42

Nutrient. An inorganic or organic compound that the body can breakdown for energy.

Front 43

Ecrine glands.

Back 43

Ecrine glands. Sweat glands.

Front 44

Necrosis

Back 44

Necrosis. Death of a cell from disease or injury

Front 45

Antibody.

Back 45

Antibody. A plasma cell protein that binds to and destroys antigens.

Front 46

Hypodermic needle.

Back 46

A needle injected beneath the skin to inject medicine into the subcutaneous layer.

Front 47

Carotene

Back 47

Carotene. A pigment found in carrots and leafy vegetables that the body converts into vitamin A.

Front 48

Dermatitis

Back 48

Dermatitis. Skin inflammation.

Front 49

Sebum.

Back 49

Sebum. A waxy secretion coating hairs.

Front 50

Medulla.

Back 50

Medulla. Inner layer/core of an organ.

Front 51

Sensible perspiration.

Back 51

Water loss due to secretion of sweat glands.

Front 52

Cuticle.

Back 52

Cuticle. The layer of dead, keratinized cells that surround the hair shaft.

Front 53

Holocrine.

Back 53

Holocrine. A form of exocrine secretion in which the secretory cell becomes swollen with vesicles and ruptures.

Front 54

Erythema

Back 54

Erythema. Red and inflamed skin surface.

Front 55

Dermis.

Back 55

Dermis. The connective tissue layer beneath the epidermis.

Front 56

Merocrine

Back 56

Merocrine. A method of secretion where the secretory vesicle fuses with the plasma membrane in order to secrete.

Front 57

Insensible perspiration

Back 57

Insensible perspiration. Water loss by diffusion of the skin or evaporation across the alveolar surfaces of the lungs.

Front 58

Infection.

Back 58

Infection. The invasion of body tissues by pathogens.

Front 59

Hair follicle.

Back 59

Hair follicle. Accessory to the integumen. A tube lined by stratified squamous epithelium that begins at the skin surface and ends at the hair papilla.

Front 60

ceruminous glands.

Back 60

ceruminous glands. Secrete cerumin -- ear wax.

Front 61

hypodermis.

Back 61

hypodermis. Also subcutaneous layer or superficial fascia. Lowermost (deepest) layer of the intergumen.

Front 62

Hair

Back 62

Hair. A keratinous strand produced by epithelial cells of the hair follicle.

Front 63

adduction.

Back 63

adduction. Movement toward midline while in anatomical position.

Front 64

Integument.

Back 64

Integument. Skin.

Front 65

Albuginea.

Back 65

Albuginea. White.