Dermis

Question 1

What protein is responsible for the elasticity of the skin?

Answer 1

Elastin

Question 2

What is the hydrophilic gel like substance that supports the dermis

Answer 2

Hyaluronic acid

Question 3

What protein is responsible for the tone of the skin?

Answer 3

Collagen

Question 4

What is the mesh like protein fiber that makes up 5% of the dermis?

Answer 4

Reticulan

Question 5

What are some other names for the dermis?

Answer 5

True Skin/ Cutis

Question 6

What are the two layers of the dermis

Answer 6

Papillary layer and Reticulary layer

Question 7

Looped capillaries and tactile corpuscles are located with in the?

Answer 7

Dermal Papillae

Question 8

What humectant can hold 100x its weight in water?

Answer 8

Hyaluronic Acid

Question 9

Made of glycosaminoglycans and proteins and is contained in the dermis is

Answer 9

Ground substance

Question 10

Swelling?

Answer 10

Edema

Question 11

Fat cells?

Answer 11

Adipose tissue

Question 12

Itching?

Answer 12

Pruritus

Question 13

Redness?

Answer 13

Erythema

Question 14

What are the four specialized cells of the dermis and the functions?

Answer 14

Mast Cell -(histamine and heparin) inflammatory response.

Lymphocyte- produces antibodies

Macrophage- keeps us safe from disease and foreign substances

Fibroblast- produces collagen& stimulates

Question 15

8 structures found in the dermis and explain their function.

Answer 15

Adipose tissue- (fat cells) insulation and energy.

Blood Vessels- transports blood and carries oxygen & nutrients to the cell, removes wastes.

Lymph Vessels- Removes wastes and filters extra fluid and returns back into the blood stream.

Sebaceous glands- produces sebum

Sudoriferous Glands-excretes wastes and toxins

Hair follicle- protects and regulates the body with temperate in transport of sebum.

Arrector Pilli Muscle- causes goose bumps , attached to the hair follicle.

Nerve ending- detects sensations

Question 16

hair root?

Answer 16

hair located below the skin

Question 17

medula

Answer 17

inner most layer of the hair shaft

Question 18

actual nail, made up of hard keratin

Answer 18

nail plate

Question 19

transitional phase of hair growth

Answer 19

catagen

Question 20

location of the hair with in the skin

Answer 20

hair follicle

Question 21

soft, fine hair found on women and children

Answer 21

vellus

Question 22

also known as appendages of the skin

Answer 22

deriavatives

Question 23

hair found on the fetus

Answer 23

lanugo

Question 24

nail that extends off the finger

Answer 24

free edge

Question 25

active phase

Answer 25

anagen

Question 26

lubricates areas of high friction

Answer 26

apocrine glands

Question 27

slender outgrowths of the skin and scalp

Answer 27

hair

Question 28

layer of the hair shaft that contains keratin and melanin

Answer 28

cortex

Question 29

opening on the surface of the skin

Answer 29

follicular ostia

Question 30

excretes waste

Answer 30

sudoriferous glands

Question 31

resting phase

Answer 31

telogen

Question 32

located beneath the nail plate

Answer 32

nail bed

Question 33

visible portion of the nail matrix

Answer 33

lunula

Question 34

outer protective layer of the hair shaft

Answer 34

hair cuticle

Question 35

produces sebum

Answer 35

sebaceous glands

Question 36

the hair located above the skin

Answer 36

hair shaft

Question 37

location of growth for the nail

Answer 37

nail matrix

Question 38

softens, lubricates, and protects the surface of the skin

Answer 38

sebum

Question 39

technical term for nail

Answer 39

onyx

Question 40

what is hair made up of ?

Answer 40

Hard keratin 4% sulfur on hair 2% sulfur on skin

Question 41

Four functions of hair

Answer 41

Temperature of regulation Protection Transportation of substances sensations of touch

Question 42

Anagen

Answer 42

Hair is ACTIVE-ly growing and producing new cells. Bulb is attached firmly to dermal papillae Mitosis* Wax *

Question 43

Catagen

Answer 43

Hair detaches from the dermal papillae and dies, transistional phase.

Question 44

Telogen

Answer 44

Resting phase, | Hair moves up the follicle in preparation for shedding

Question 45

Follicular Ostia

Answer 45

The opening on the surface of the skin which the hair extends

Question 46

Hair follicle

Answer 46

A tube like space within the skin where hair is located

Question 47

Hair Bulb

Answer 47

The matrix of living mitotic cells that creates the hair root.

Question 48

Hair root

Answer 48

Part of the hair found under the skin

Question 49

Hair shaft

Answer 49

The hair that is found above the skin

Question 50

Cuticle

Answer 50

The outer scaly protective layer of the hair shaft

Question 51

Medulla

Answer 51

the inner most layer of the hair shaft , not present in all hair.

Question 52

Lanugo( Location and wax yes or no)

Answer 52

Found on fetus' will fall off and be replaced with vellus or terminal hair.

Question 53

Vellus(location and wax yes or no)

Answer 53

Face and body

Question 54

Terminal(location and wax y or no )

Answer 54

head, brows, lashes, legs, underarms, genitals, body of men.

Question 55

four functions of the nail

Answer 55

Protection of fingers and toes aids self defense decoration

Question 56

Appocrine Gland (5 functions)

Answer 56

``` Attached to hair follicle Responsible for body odor when mixed with bacteria produces alkaline substance found in underarm and pubic regions active at puberty produce pheromones ```

Question 57

Eccrine Glands

Answer 57

cools the body through perspiration and evaporation active at birth free standing not attached to hair follicle high concentration on palms and soles found all over body acidic substance

Question 58

mature hair is known as ?

Answer 58

club hair

Question 59

Structures of dermis?

Answer 59

FAT BOYS LIVE ON SAINT HELENS AVENUE NORTH ``` Fat cells Blood vessels lymph vessels sebaceous glands sudoriferous glands hair follicle arrector pili muscle nerve endings ```

Question 60

Histamine vs Heparin

Answer 60

Histamine causes edema and pruritus | Heparin causes erythema and heat